crash.log

panic: Failed to write data, buffer full for stream 22

goroutine 29 [running]:
runtime.panic(0x646fe0, 0xc21034f520)
	/usr/local/go/src/pkg/runtime/panic.c:266 +0xb6
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc2100dad90)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:401 +0x1284
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 1 [chan receive]:
net/rpc.(*Client).Call(0xc210059cc0, 0x736a50, 0xb, 0x62e020, 0xc210085840, ...)
	/usr/local/go/src/pkg/net/rpc/client.go:313 +0xa6
github.com/mitchellh/packer/packer/rpc.(*command).Run(0xc210086460, 0x7f8f714319d0, 0xc210059660, 0xc21000a020, 0x2, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/command.go:48 +0x127
github.com/mitchellh/packer/packer/plugin.(*cmdCommand).Run(0xc2100857c0, 0x7f8f714319d0, 0xc210059660, 0xc21000a020, 0x2, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/command.go:29 +0xc1
github.com/mitchellh/packer/packer.(*coreEnvironment).Cli(0xc210059660, 0xc21000a010, 0x3, 0x3, 0x0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/environment.go:269 +0x8d4
main.wrappedMain(0x0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer.go:153 +0x10ce
main.realMain(0x0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer.go:73 +0x704
main.main()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer.go:22 +0x1e

goroutine 3 [syscall]:
os/signal.loop()
	/usr/local/go/src/pkg/os/signal/signal_unix.go:21 +0x1e
created by os/signal.init·1
	/usr/local/go/src/pkg/os/signal/signal_unix.go:27 +0x31

goroutine 7 [chan receive]:
main.func·002()
	/home/vagrant/go/src/github.com/mitchellh/packer/signal.go:20 +0x40
created by main.setupSignalHandlers
	/home/vagrant/go/src/github.com/mitchellh/packer/signal.go:35 +0x11c

goroutine 5 [syscall]:
syscall.Syscall(0x0, 0x0, 0xc210089000, 0x8000, 0x424699, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0x0, 0xc210089000, 0x8000, 0x8000, 0x7f8f714318d0, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x0, 0xc210089000, 0x8000, 0x8000, 0x1, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210000000, 0xc210089000, 0x8000, 0x8000, 0x4215f8, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210000000, 0xc210089000, 0x8000, 0x8000, 0x8000, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431010, 0xc2100003a0, 0x7f8f71431098, 0xc210000000, 0x0, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
main.func·003()
	/home/vagrant/go/src/github.com/mitchellh/packer/stdin.go:23 +0x92
created by main.setupStdin
	/home/vagrant/go/src/github.com/mitchellh/packer/stdin.go:24 +0xae

goroutine 6 [chan receive]:
main.func·004()
	/home/vagrant/go/src/github.com/mitchellh/packer/stdin.go:34 +0x86
created by main.setupStdin
	/home/vagrant/go/src/github.com/mitchellh/packer/stdin.go:36 +0x190

goroutine 8 [syscall]:
syscall.Syscall(0x0, 0x5, 0xc210095000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0x5, 0xc210095000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x5, 0xc210095000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210000590, 0xc210095000, 0x8000, 0x8000, 0xc210095000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210000590, 0xc210095000, 0x8000, 0x8000, 0x23, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc210000540, 0x7f8f71431098, 0xc210000590, 0x23, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0xc21005da90, 0x646fe0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc210085420)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 9 [syscall]:
syscall.Syscall(0x0, 0x7, 0xc21009d000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0x7, 0xc21009d000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x7, 0xc21009d000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc2100005b8, 0xc21009d000, 0x8000, 0x8000, 0xc21009d000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc2100005b8, 0xc21009d000, 0x8000, 0x8000, 0x3e, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc210000558, 0x7f8f71431098, 0xc2100005b8, 0x9c9, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc210085480)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 10 [syscall]:
syscall.Syscall6(0x3d, 0x61d, 0xc210000600, 0x0, 0xc210055ab0, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:43 +0x5
syscall.wait4(0x61d, 0xc210000600, 0x0, 0xc210055ab0, 0x425b32, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:120 +0x7d
syscall.Wait4(0x61d, 0x7f8f712a1e24, 0x0, 0xc210055ab0, 0x0, ...)
	/usr/local/go/src/pkg/syscall/syscall_linux.go:222 +0x6e
os.(*Process).wait(0xc2100856a0, 0x0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc2100856a0, 0x424a59, 0x800, 0x0)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc2100383c0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 11 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007b280)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007b270)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007b240, 0xc2100ba000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000550, 0xc2100ba000, 0x1000, 0x1000, 0x41d8c9, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc210059900)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc210059900, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc210059900, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc210059900, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc210092000, 0x7f8f71431ad0, 0xc210000550)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 12 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007b1c0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007b1b0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007b180, 0xc2100bc000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000538, 0xc2100bc000, 0x1000, 0x1000, 0x424699, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc210059960)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc210059960, 0xc2100bc00a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc210059960, 0xc21005980a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

goroutine 14 [chan receive]:
github.com/mitchellh/packer/packer/plugin.func·008()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:304 +0x3c
created by github.com/mitchellh/packer/packer/plugin.func·009
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:306 +0x4d

goroutine 15 [select]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc21004f1c0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:220 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 16 [runnable]:
syscall.Syscall(0x0, 0x6, 0xc21034a880, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:38 +0x64
syscall.read(0x6, 0xc21034a880, 0x1, 0x1, 0x72, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x6, 0xc21034a880, 0x1, 0x1, 0x4, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
net.(*netFD).Read(0xc21004ff50, 0xc21034a880, 0x1, 0x1, 0x0, ...)
	/usr/local/go/src/pkg/net/fd_unix.go:200 +0x1eb
net.(*conn).Read(0xc210000628, 0xc21034a880, 0x1, 0x1, 0x8, ...)
	/usr/local/go/src/pkg/net/net.go:122 +0xc5
io.ReadAtLeast(0x7f8f71432cc8, 0xc210000628, 0xc21034a880, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432cc8, 0xc210000628, 0xc21034a880, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/binary.Read(0x7f8f71432cc8, 0xc210000628, 0x7f8f71432c70, 0xc210000628, 0x6aed00, ...)
	/usr/local/go/src/pkg/encoding/binary/binary.go:215 +0x120c
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc21004f1c0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:268 +0x182
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 17 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 18 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007b340)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007b330)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007b300, 0xc21007c000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000638, 0xc21007c000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210059b40, 0xc21007c000, 0x1000, 0x1000, 0x0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc210059c60)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc210059c60, 0xc210086440, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc210059c60, 0xc210086440, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc210059c60, 0xc210086440, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc210059c60, 0xc210086440, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210088000, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210088000, 0xc210092b00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210088000, 0x62f460, 0xc210092b40, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210088000, 0x62f460, 0xc210092b40, 0x6e9400, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc2100927b0, 0xc210092b40, 0x0, 0x0)
	/usr/local/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc210059cc0)
	/usr/local/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 19 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007b640)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007b630)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007b600, 0xc2100e2000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2100009a8, 0xc2100e2000, 0x1000, 0x1000, 0x425c01, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210059d80, 0xc2100e2000, 0x1000, 0x1000, 0x425c01, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc210059de0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc210059de0, 0xc210086620, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc210059de0, 0xc210086620, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc210059de0, 0xc210086620, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc210059de0, 0xc210086620, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2100880f0, 0xc21008812c)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2100880f0, 0xc210085d00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2100880f0, 0x62f420, 0xc210085da0, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2100880f0, 0x62f420, 0xc210085da0, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210092db0, 0xc210085da0, 0x425c01, 0x8)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210060d00, 0x7f8f71432ea0, 0xc210092db0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210060d00, 0x7f8f71432ea0, 0xc210092db0, 0xc21006ca80, 0xc2100854e0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210060d00, 0x7f8f71432ea0, 0xc210092db0)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210060d00, 0x7f8f71432cf0, 0xc210059d80)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc210085800)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*command).Run
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/command.go:42 +0xa1

goroutine 20 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 33 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 22 [syscall]:
syscall.Syscall(0x0, 0x9, 0xc2100e9000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0x9, 0xc2100e9000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x9, 0xc2100e9000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210000e38, 0xc2100e9000, 0x8000, 0x8000, 0xc2100e9000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210000e38, 0xc2100e9000, 0x8000, 0x8000, 0x23, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc210000de8, 0x7f8f71431098, 0xc210000e38, 0x23, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc210085680)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 23 [syscall]:
syscall.Syscall(0x0, 0xb, 0xc2100f9000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0xb, 0xc2100f9000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0xb, 0xc2100f9000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210000e60, 0xc2100f9000, 0x8000, 0x8000, 0xc2100f9000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210000e60, 0xc2100f9000, 0x8000, 0x8000, 0x4a, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc210000e00, 0x7f8f71431098, 0xc210000e60, 0x1677, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc210085780)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 24 [syscall]:
syscall.Syscall6(0x3d, 0x629, 0xc210000ea8, 0x0, 0xc210055630, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:43 +0x5
syscall.wait4(0x629, 0xc210000ea8, 0x0, 0xc210055630, 0x425b32, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:120 +0x7d
syscall.Wait4(0x629, 0x7f8f7127de24, 0x0, 0xc210055630, 0x0, ...)
	/usr/local/go/src/pkg/syscall/syscall_linux.go:222 +0x6e
os.(*Process).wait(0xc210054f40, 0x0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc210054f40, 0x424a59, 0x800, 0x0)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc210038640, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 25 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007b880)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007b870)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007b840, 0xc210116000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000df8, 0xc210116000, 0x1000, 0x1000, 0x41d8c9, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2100e7120)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2100e7120, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2100e7120, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc2100e7120, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc2100e54b0, 0x7f8f71431ad0, 0xc210000df8)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 26 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007b7c0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007b7b0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007b780, 0xc210118000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000de0, 0xc210118000, 0x1000, 0x1000, 0x424699, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2100e7180)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2100e7180, 0xc21011800a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2100e7180, 0xc2100e700a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

goroutine 27 [chan receive]:
github.com/mitchellh/packer/packer/plugin.func·008()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:304 +0x3c
created by github.com/mitchellh/packer/packer/plugin.func·009
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:306 +0x4d

goroutine 28 [runnable]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc2100dad90)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:220 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 30 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 31 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007b940)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007b930)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007b900, 0xc21011e000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000ee0, 0xc21011e000, 0x1000, 0x1000, 0xc210246a40, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100e7300, 0xc21011e000, 0x1000, 0x1000, 0xc210056905, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2100e7420)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100e7420, 0xc210086d10, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2100e7420, 0xc210086d10, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2100e7420, 0xc210086d10, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2100e7420, 0xc210086d10, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2100881e0, 0xc21008821c)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2100881e0, 0xc2100e5e00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2100881e0, 0x62f460, 0xc2100e5e70, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2100881e0, 0x62f460, 0xc2100e5e70, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc2100e5c60, 0xc2100e5e70, 0xc210245960, 0x0)
	/usr/local/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc2100e7480)
	/usr/local/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 32 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007bb80)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007bb70)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007bb40, 0xc210123000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000380, 0xc210123000, 0x1000, 0x1000, 0xc210056938, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100e74e0, 0xc210123000, 0x1000, 0x1000, 0xc210021d40, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2100e7540)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100e7540, 0xc210086d50, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2100e7540, 0xc210086d50, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2100e7540, 0xc210086d50, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2100e7540, 0xc210086d50, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2100882d0, 0xc210082800)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2100882d0, 0xc21011b200, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2100882d0, 0x62f420, 0xc21011b2c0, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2100882d0, 0x62f420, 0xc21011b2c0, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210121180, 0xc21011b2c0, 0x7f8f71428130, 0x7f8f71428000)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2100e3480, 0x7f8f71432ea0, 0xc210121180, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2100e3480, 0x7f8f71432ea0, 0xc210121180, 0xc21011a300, 0xc210246080, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2100e3480, 0x7f8f71432ea0, 0xc210121180)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2100e3480, 0x7f8f71432cf0, 0xc2100e74e0)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc21011b0c0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Builder
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:127 +0x140

goroutine 46 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 35 [syscall]:
syscall.Syscall(0x0, 0xc, 0xc210128000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0xc, 0xc210128000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0xc, 0xc210128000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc2100005d8, 0xc210128000, 0x8000, 0x8000, 0xc210128000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc2100005d8, 0xc210128000, 0x8000, 0x8000, 0x23, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc210000510, 0x7f8f71431098, 0xc2100005d8, 0x23, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21011b400)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 36 [syscall]:
syscall.Syscall(0x0, 0xe, 0xc21013d000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0xe, 0xc21013d000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0xe, 0xc21013d000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210000620, 0xc21013d000, 0x8000, 0x8000, 0xc21013d000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210000620, 0xc21013d000, 0x8000, 0x8000, 0x3f, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc210000570, 0x7f8f71431098, 0xc210000620, 0x1a6, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21011b460)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 37 [syscall]:
syscall.Syscall6(0x3d, 0x631, 0xc2100006c0, 0x0, 0xc210125120, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:43 +0x5
syscall.wait4(0x631, 0xc2100006c0, 0x0, 0xc210125120, 0x425b32, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:120 +0x7d
syscall.Wait4(0x631, 0x7f8f6c33ae24, 0x0, 0xc210125120, 0x0, ...)
	/usr/local/go/src/pkg/syscall/syscall_linux.go:222 +0x6e
os.(*Process).wait(0xc21011b680, 0x0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc21011b680, 0x424a59, 0x800, 0x0)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc210038780, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 38 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007bdc0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007bdb0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007bd80, 0xc21015a000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000548, 0xc21015a000, 0x1000, 0x1000, 0x41d8c9, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2100e77e0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2100e77e0, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2100e77e0, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc2100e77e0, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc210121630, 0x7f8f71431ad0, 0xc210000548)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 39 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007bd00)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007bcf0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007bcc0, 0xc21015c000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000508, 0xc21015c000, 0x1000, 0x1000, 0x424699, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2100e7840)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2100e7840, 0xc21015c00a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2100e7840, 0xc2100e770a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

goroutine 40 [chan receive]:
github.com/mitchellh/packer/packer/plugin.func·008()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:304 +0x3c
created by github.com/mitchellh/packer/packer/plugin.func·009
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:306 +0x4d

goroutine 41 [select]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc21011f7e0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:220 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 42 [IO wait]:
net.runtime_pollWait(0x7f8f714329f0, 0x72, 0x0)
	/usr/local/go/src/pkg/runtime/netpoll.goc:116 +0x6a
net.(*pollDesc).Wait(0xc21011f6f0, 0x72, 0x7f8f714310e8, 0xb)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:81 +0x34
net.(*pollDesc).WaitRead(0xc21011f6f0, 0xb, 0x7f8f714310e8)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:86 +0x30
net.(*netFD).Read(0xc21011f690, 0xc21028bb38, 0x1, 0x1, 0x0, ...)
	/usr/local/go/src/pkg/net/fd_unix.go:204 +0x2a0
net.(*conn).Read(0xc210000040, 0xc21028bb38, 0x1, 0x1, 0x8, ...)
	/usr/local/go/src/pkg/net/net.go:122 +0xc5
io.ReadAtLeast(0x7f8f71432cc8, 0xc210000040, 0xc21028bb38, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432cc8, 0xc210000040, 0xc21028bb38, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/binary.Read(0x7f8f71432cc8, 0xc210000040, 0x7f8f71432c70, 0xc210000040, 0x6aed00, ...)
	/usr/local/go/src/pkg/encoding/binary/binary.go:215 +0x120c
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc21011f7e0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:268 +0x182
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 43 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 44 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007be80)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007be70)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007be40, 0xc210166000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000050, 0xc210166000, 0x1000, 0x1000, 0xa80008, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100e79c0, 0xc210166000, 0x1000, 0x1000, 0x0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2100e7a80)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100e7a80, 0xc210086fb0, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2100e7a80, 0xc210086fb0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2100e7a80, 0xc210086fb0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2100e7a80, 0xc210086fb0, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2100883c0, 0xc2100883fc)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2100883c0, 0xc210121f00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2100883c0, 0x62f460, 0xc210121f30, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2100883c0, 0x62f460, 0xc210121f30, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc210121de0, 0xc210121f30, 0xc2102bb2c0, 0x0)
	/usr/local/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc2100e7ae0)
	/usr/local/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 45 [semacquire]:
sync.runtime_Syncsemacquire(0xc21007b4c0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21007b4b0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21007b480, 0xc21016b000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000118, 0xc21016b000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100e7b40, 0xc21016b000, 0x1000, 0x1000, 0xc2100e3740, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2100e7ba0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100e7ba0, 0xc210086fe0, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2100e7ba0, 0xc210086fe0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2100e7ba0, 0xc210086fe0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2100e7ba0, 0xc210086fe0, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2100884b0, 0xc21024e540)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2100884b0, 0xc21011b800, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2100884b0, 0x62f420, 0xc21011b840, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2100884b0, 0x62f420, 0xc21011b840, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210169240, 0xc21011b840, 0x7f8f71428130, 0x7f8f71428000)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2100e3a40, 0x7f8f71432ea0, 0xc210169240, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2100e3a40, 0x7f8f71432ea0, 0xc210169240, 0xc21011a880, 0xc210254440, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2100e3a40, 0x7f8f71432ea0, 0xc210169240)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2100e3a40, 0x7f8f71432cf0, 0xc2100e7b40)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc21011b7c0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Provisioner
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:181 +0x140

goroutine 59 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 48 [syscall]:
syscall.Syscall(0x0, 0xf, 0xc21016e000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0xf, 0xc21016e000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0xf, 0xc21016e000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210168110, 0xc21016e000, 0x8000, 0x8000, 0xc21016e000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210168110, 0xc21016e000, 0x8000, 0x8000, 0x23, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc2101680c0, 0x7f8f71431098, 0xc210168110, 0x23, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21011b980)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 49 [syscall]:
syscall.Syscall(0x0, 0x11, 0xc21017e000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0x11, 0xc21017e000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x11, 0xc21017e000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210168138, 0xc21017e000, 0x8000, 0x8000, 0xc21017e000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210168138, 0xc21017e000, 0x8000, 0x8000, 0x3b, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc2101680d8, 0x7f8f71431098, 0xc210168138, 0x29c, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21011b9e0)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 50 [syscall]:
syscall.Syscall6(0x3d, 0x639, 0xc210168180, 0x0, 0xc2101257e0, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:43 +0x5
syscall.wait4(0x639, 0xc210168180, 0x0, 0xc2101257e0, 0x425b32, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:120 +0x7d
syscall.Wait4(0x639, 0x7f8f6c2fae24, 0x0, 0xc2101257e0, 0x0, ...)
	/usr/local/go/src/pkg/syscall/syscall_linux.go:222 +0x6e
os.(*Process).wait(0xc21011bc00, 0x0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc21011bc00, 0x424a59, 0x800, 0x0)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc2100388c0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 51 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016d100)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016d0f0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016d0c0, 0xc210196000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101680d0, 0xc210196000, 0x1000, 0x1000, 0x41d8c9, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2100e71e0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2100e71e0, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2100e71e0, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc2100e71e0, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc2101696f0, 0x7f8f71431ad0, 0xc2101680d0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 52 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016d040)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016d030)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016d000, 0xc210198000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101680b8, 0xc210198000, 0x1000, 0x1000, 0x424699, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2100e7240)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2100e7240, 0xc21019800a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2100e7240, 0xc2100e7d0a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

goroutine 53 [chan receive]:
github.com/mitchellh/packer/packer/plugin.func·008()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:304 +0x3c
created by github.com/mitchellh/packer/packer/plugin.func·009
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:306 +0x4d

goroutine 54 [select]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc21011f000)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:220 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 55 [IO wait]:
net.runtime_pollWait(0x7f8f71432948, 0x72, 0x0)
	/usr/local/go/src/pkg/runtime/netpoll.goc:116 +0x6a
net.(*pollDesc).Wait(0xc21011fed0, 0x72, 0x7f8f714310e8, 0xb)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:81 +0x34
net.(*pollDesc).WaitRead(0xc21011fed0, 0xb, 0x7f8f714310e8)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:86 +0x30
net.(*netFD).Read(0xc21011fe70, 0xc21042aec0, 0x1, 0x1, 0x0, ...)
	/usr/local/go/src/pkg/net/fd_unix.go:204 +0x2a0
net.(*conn).Read(0xc2101681a8, 0xc21042aec0, 0x1, 0x1, 0x8, ...)
	/usr/local/go/src/pkg/net/net.go:122 +0xc5
io.ReadAtLeast(0x7f8f71432cc8, 0xc2101681a8, 0xc21042aec0, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432cc8, 0xc2101681a8, 0xc21042aec0, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/binary.Read(0x7f8f71432cc8, 0xc2101681a8, 0x7f8f71432c70, 0xc2101681a8, 0x6aed00, ...)
	/usr/local/go/src/pkg/encoding/binary/binary.go:215 +0x120c
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc21011f000)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:268 +0x182
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 56 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 57 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016d280)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016d270)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016d240, 0xc2101a4000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101681b8, 0xc2101a4000, 0x1000, 0x1000, 0xa80008, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100e78a0, 0xc2101a4000, 0x1000, 0x1000, 0x0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2100e7a20)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100e7a20, 0xc210086320, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2100e7a20, 0xc210086320, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2100e7a20, 0xc210086320, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2100e7a20, 0xc210086320, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2100885a0, 0xc2100885dc)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2100885a0, 0xc210169000, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2100885a0, 0x62f460, 0xc210169000, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2100885a0, 0x62f460, 0xc210169000, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc210169ea0, 0xc210169000, 0xc210288e20, 0x0)
	/usr/local/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc2100e7cc0)
	/usr/local/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 58 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016d4c0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016d4b0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016d480, 0xc2101ac000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210168280, 0xc2101ac000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100e7d20, 0xc2101ac000, 0x1000, 0x1000, 0xc2100e3740, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2100590c0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100590c0, 0xc210086350, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2100590c0, 0xc210086350, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2100590c0, 0xc210086350, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2100590c0, 0xc210086350, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210088690, 0xc21024ec40)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210088690, 0xc21011bd00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210088690, 0x62f420, 0xc21011bdc0, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210088690, 0x62f420, 0xc21011bdc0, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210169480, 0xc21011bdc0, 0x425c01, 0x10)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2100e3d80, 0x7f8f71432ea0, 0xc210169480, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2100e3d80, 0x7f8f71432ea0, 0xc210169480, 0xc21011ad80, 0xc2102644c0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2100e3d80, 0x7f8f71432ea0, 0xc210169480)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2100e3d80, 0x7f8f71432cf0, 0xc2100e7d20)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc21011bd40)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Provisioner
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:181 +0x140

goroutine 72 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 61 [syscall]:
syscall.Syscall(0x0, 0x12, 0xc2101af000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0x12, 0xc2101af000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x12, 0xc2101af000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc2101683b0, 0xc2101af000, 0x8000, 0x8000, 0xc2101af000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc2101683b0, 0xc2101af000, 0x8000, 0x8000, 0x23, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc210168360, 0x7f8f71431098, 0xc2101683b0, 0x23, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21011bf00)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 62 [syscall]:
syscall.Syscall(0x0, 0x14, 0xc2101c4000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0x14, 0xc2101c4000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x14, 0xc2101c4000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc2101683d8, 0xc2101c4000, 0x8000, 0x8000, 0xc2101c4000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc2101683d8, 0xc2101c4000, 0x8000, 0x8000, 0x38, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc210168378, 0x7f8f71431098, 0xc2101683d8, 0x299, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21011bf60)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 63 [syscall]:
syscall.Syscall6(0x3d, 0x641, 0xc210168420, 0x0, 0xc210125ea0, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:43 +0x5
syscall.wait4(0x641, 0xc210168420, 0x0, 0xc210125ea0, 0x425b32, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:120 +0x7d
syscall.Wait4(0x641, 0x7f8f6c2bae24, 0x0, 0xc210125ea0, 0x0, ...)
	/usr/local/go/src/pkg/syscall/syscall_linux.go:222 +0x6e
os.(*Process).wait(0xc21011b4a0, 0x0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc21011b4a0, 0x424a59, 0x800, 0x0)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc210038a00, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 64 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016d700)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016d6f0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016d6c0, 0xc2101e1000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210168370, 0xc2101e1000, 0x1000, 0x1000, 0x41d8c9, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc210059e40)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc210059e40, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc210059e40, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc210059e40, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc210121240, 0x7f8f71431ad0, 0xc210168370)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 65 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016d640)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016d630)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016d600, 0xc2101e3000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210168358, 0xc2101e3000, 0x1000, 0x1000, 0x424699, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc210059ea0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc210059ea0, 0xc2101e300a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc210059ea0, 0xc210059b0a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

goroutine 66 [chan receive]:
github.com/mitchellh/packer/packer/plugin.func·008()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:304 +0x3c
created by github.com/mitchellh/packer/packer/plugin.func·009
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:306 +0x4d

goroutine 67 [select]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc21011fa80)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:220 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 68 [IO wait]:
net.runtime_pollWait(0x7f8f714328a0, 0x72, 0x0)
	/usr/local/go/src/pkg/runtime/netpoll.goc:116 +0x6a
net.(*pollDesc).Wait(0xc21011f760, 0x72, 0x7f8f714310e8, 0xb)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:81 +0x34
net.(*pollDesc).WaitRead(0xc21011f760, 0xb, 0x7f8f714310e8)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:86 +0x30
net.(*netFD).Read(0xc21011f700, 0xc2104a69f8, 0x1, 0x1, 0x0, ...)
	/usr/local/go/src/pkg/net/fd_unix.go:204 +0x2a0
net.(*conn).Read(0xc210168448, 0xc2104a69f8, 0x1, 0x1, 0x8, ...)
	/usr/local/go/src/pkg/net/net.go:122 +0xc5
io.ReadAtLeast(0x7f8f71432cc8, 0xc210168448, 0xc2104a69f8, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432cc8, 0xc210168448, 0xc2104a69f8, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/binary.Read(0x7f8f71432cc8, 0xc210168448, 0x7f8f71432c70, 0xc210168448, 0x6aed00, ...)
	/usr/local/go/src/pkg/encoding/binary/binary.go:215 +0x120c
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc21011fa80)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:268 +0x182
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 69 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 70 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016d7c0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016d7b0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016d780, 0xc2101e8000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210168458, 0xc2101e8000, 0x1000, 0x1000, 0xa80008, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2101e5060, 0xc2101e8000, 0x1000, 0x1000, 0x0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2101e5120)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101e5120, 0xc2100865d0, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2101e5120, 0xc2100865d0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2101e5120, 0xc2100865d0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2101e5120, 0xc2100865d0, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210088780, 0xc2100887bc)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210088780, 0xc210121f00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210088780, 0x62f460, 0xc210121f90, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210088780, 0x62f460, 0xc210121f90, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc210121c00, 0xc210121f90, 0xc21042b700, 0x0)
	/usr/local/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc2101e5180)
	/usr/local/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 71 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016da00)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016d9f0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016d9c0, 0xc2101eb000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210168520, 0xc2101eb000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2101e51e0, 0xc2101eb000, 0x1000, 0x1000, 0xc2100e3740, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2101e5240)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101e5240, 0xc2100866a0, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2101e5240, 0xc2100866a0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2101e5240, 0xc2100866a0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2101e5240, 0xc2100866a0, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210088870, 0xc2102711c0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210088870, 0xc21011b600, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210088870, 0x62f420, 0xc21011b660, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210088870, 0x62f420, 0xc21011b660, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc2100e5330, 0xc21011b660, 0x425c01, 0x10)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2100e3340, 0x7f8f71432ea0, 0xc2100e5330, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2100e3340, 0x7f8f71432ea0, 0xc2100e5330, 0xc21011a480, 0xc210274480, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2100e3340, 0x7f8f71432ea0, 0xc2100e5330)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2100e3340, 0x7f8f71432cf0, 0xc2101e51e0)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc21011b5e0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Provisioner
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:181 +0x140

goroutine 85 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 74 [syscall]:
syscall.Syscall(0x0, 0x15, 0xc2101f7000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0x15, 0xc2101f7000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x15, 0xc2101f7000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210168648, 0xc2101f7000, 0x8000, 0x8000, 0xc2101f7000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210168648, 0xc2101f7000, 0x8000, 0x8000, 0x23, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc2101685f8, 0x7f8f71431098, 0xc210168648, 0x23, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21011b880)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 75 [syscall]:
syscall.Syscall(0x0, 0x17, 0xc2101ff000, 0x8000, 0x100000001, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:18 +0x5
syscall.read(0x17, 0xc2101ff000, 0x8000, 0x8000, 0x4189bd, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:838 +0x72
syscall.Read(0x17, 0xc2101ff000, 0x8000, 0x8000, 0x7c8c60, ...)
	/usr/local/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210168670, 0xc2101ff000, 0x8000, 0x8000, 0xc2101ff000, ...)
	/usr/local/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210168670, 0xc2101ff000, 0x8000, 0x8000, 0x3e, ...)
	/usr/local/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7f8f71431a80, 0xc210168610, 0x7f8f71431098, 0xc210168670, 0x3fb, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21011b8e0)
	/usr/local/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/usr/local/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 76 [syscall]:
syscall.Syscall6(0x3d, 0x64a, 0xc2101686b8, 0x0, 0xc2101256c0, ...)
	/usr/local/go/src/pkg/syscall/asm_linux_amd64.s:43 +0x5
syscall.wait4(0x64a, 0xc2101686b8, 0x0, 0xc2101256c0, 0x425b32, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_linux_amd64.go:120 +0x7d
syscall.Wait4(0x64a, 0x7f8f6c27ae24, 0x0, 0xc2101256c0, 0x0, ...)
	/usr/local/go/src/pkg/syscall/syscall_linux.go:222 +0x6e
os.(*Process).wait(0xc2100850c0, 0x0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc2100850c0, 0x424a59, 0x800, 0x0)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc210038b40, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 77 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016dc40)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016dc30)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016dc00, 0xc21021c000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210168608, 0xc21021c000, 0x1000, 0x1000, 0x41d8c9, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2101e5540)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2101e5540, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2101e5540, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc2101e5540, 0xa, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc2100e5a20, 0x7f8f71431ad0, 0xc210168608)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 78 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016db80)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016db70)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016db40, 0xc21021e000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101685f0, 0xc21021e000, 0x1000, 0x1000, 0x424699, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2101e55a0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2101e55a0, 0xc21021e00a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2101e55a0, 0xc2101e540a, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

goroutine 79 [chan receive]:
github.com/mitchellh/packer/packer/plugin.func·008()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:304 +0x3c
created by github.com/mitchellh/packer/packer/plugin.func·009
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/client.go:306 +0x4d

goroutine 80 [select]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc21004f0e0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:220 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 81 [IO wait]:
net.runtime_pollWait(0x7f8f714327f8, 0x72, 0x0)
	/usr/local/go/src/pkg/runtime/netpoll.goc:116 +0x6a
net.(*pollDesc).Wait(0xc2100dac30, 0x72, 0x7f8f714310e8, 0xb)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:81 +0x34
net.(*pollDesc).WaitRead(0xc2100dac30, 0xb, 0x7f8f714310e8)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:86 +0x30
net.(*netFD).Read(0xc2100dabd0, 0xc21042a848, 0x1, 0x1, 0x0, ...)
	/usr/local/go/src/pkg/net/fd_unix.go:204 +0x2a0
net.(*conn).Read(0xc2101686e0, 0xc21042a848, 0x1, 0x1, 0x8, ...)
	/usr/local/go/src/pkg/net/net.go:122 +0xc5
io.ReadAtLeast(0x7f8f71432cc8, 0xc2101686e0, 0xc21042a848, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432cc8, 0xc2101686e0, 0xc21042a848, 0x1, 0x1, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/binary.Read(0x7f8f71432cc8, 0xc2101686e0, 0x7f8f71432c70, 0xc2101686e0, 0x6aed00, ...)
	/usr/local/go/src/pkg/encoding/binary/binary.go:215 +0x120c
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc21004f0e0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:268 +0x182
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 82 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 83 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016dd00)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016dcf0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016dcc0, 0xc210227000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101686f0, 0xc210227000, 0x1000, 0x1000, 0xa80008, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2101e5660, 0xc210227000, 0x1000, 0x1000, 0x0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2101e56c0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101e56c0, 0xc210086c10, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2101e56c0, 0xc210086c10, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2101e56c0, 0xc210086c10, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2101e56c0, 0xc210086c10, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210088960, 0xc21008899c)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210088960, 0xc210092a00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210088960, 0x62f460, 0xc210092a20, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210088960, 0x62f460, 0xc210092a20, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc2100928d0, 0xc210092a20, 0xc21027dbf0, 0x0)
	/usr/local/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc2101e5720)
	/usr/local/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 84 [semacquire]:
sync.runtime_Syncsemacquire(0xc21016df40)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21016df30)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21016df00, 0xc21022d000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101687b8, 0xc21022d000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2101e5780, 0xc21022d000, 0x1000, 0x1000, 0xc2100e3740, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2101e58a0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101e58a0, 0xc210086ca0, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2101e58a0, 0xc210086ca0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2101e58a0, 0xc210086ca0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2101e58a0, 0xc210086ca0, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210088a50, 0xc210284400)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210088a50, 0xc210085900, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210088a50, 0x62f420, 0xc210085900, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210088a50, 0x62f420, 0xc210085900, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210092f00, 0xc210085900, 0x425c01, 0x10)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210229000, 0x7f8f71432ea0, 0xc210092f00, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210229000, 0x7f8f71432ea0, 0xc210092f00, 0xc21006c800, 0xc2102834e0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210229000, 0x7f8f71432ea0, 0xc210092f00)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210229000, 0x7f8f71432cf0, 0xc2101e5780)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc210085600)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Provisioner
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:181 +0x140

goroutine 88 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 87 [semacquire]:
sync.runtime_Syncsemacquire(0xc21022f040)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21022f030)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21022f000, 0xc210232000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101688b0, 0xc210232000, 0x1000, 0x1000, 0x8, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2101e5900, 0xc210232000, 0x1000, 0x1000, 0x1000000004100d4, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2101e5960)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101e5960, 0xc210086e00, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2101e5960, 0xc210086e00, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2101e5960, 0xc210086e00, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2101e5960, 0xc210086e00, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210088b40, 0xc210044d00)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210088b40, 0xc210085900, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210088b40, 0x62f420, 0xc2100859e0, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210088b40, 0x62f420, 0xc2100859e0, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210230150, 0xc2100859e0, 0x425c01, 0x10)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210229180, 0x7f8f71432ea0, 0xc210230150, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210229180, 0x7f8f71432ea0, 0xc210230150, 0xc21022b280, 0xc210233100, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210229180, 0x7f8f71432ea0, 0xc210230150)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210229180, 0x7f8f71432cf0, 0xc2101e5900)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc210085980)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Ui
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:191 +0xb4

goroutine 92 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 91 [semacquire]:
sync.runtime_Syncsemacquire(0xc21022f1c0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21022f1b0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21022f180, 0xc21023d000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210168d88, 0xc21023d000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2101e5d80, 0xc21023d000, 0x1000, 0x1000, 0xc2100e3180, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc2101e5de0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101e5de0, 0xc210037da0, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc2101e5de0, 0xc210037da0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc2101e5de0, 0xc210037da0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc2101e5de0, 0xc210037da0, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210088c30, 0xc210088c6c)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210088c30, 0xc210233700, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210088c30, 0x62f420, 0xc210233740, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210088c30, 0x62f420, 0xc210233740, 0x40f5ee, 0x7f8f71428030)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210236330, 0xc210233740, 0x7f8f71428130, 0x7f8f71428000)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210229540, 0x7f8f71432ea0, 0xc210236330, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210229540, 0x7f8f71432ea0, 0xc210236330, 0xc21022b580, 0xc210233240, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210229540, 0x7f8f71432ea0, 0xc210236330)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210229540, 0x7f8f71432cf0, 0xc2101e5d80)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc2102331e0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Ui
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:191 +0xb4

goroutine 100 [semacquire]:
sync.runtime_Syncsemacquire(0xc21022f7c0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21022f7b0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21022f780, 0xc21028d000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21028b000, 0xc21028d000, 0x1000, 0x1000, 0x1, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21027ea80, 0xc21028d000, 0x1000, 0x1000, 0xc2102609e0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc21027eb40)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc21027eb40, 0xc2102883c0, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc21027eb40, 0xc2102883c0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc21027eb40, 0xc2102883c0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc21027eb40, 0xc2102883c0, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210088f00, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210088f00, 0xc210283b00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210088f00, 0x62f420, 0xc210283be0, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210088f00, 0x62f420, 0xc210283be0, 0x424699, 0xc21028d000)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc21028a3f0, 0xc210283be0, 0x1, 0x7f8f00000000)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210276c80, 0x7f8f71432ea0, 0xc21028a3f0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210276c80, 0x7f8f71432ea0, 0xc21028a3f0, 0x424600, 0xc2102869a0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210276c80, 0x7f8f71432ea0, 0xc21028a3f0)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210276c80, 0x7f8f71432cf0, 0xc21027ea80)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc210283b60)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Cache
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:137 +0xb4

goroutine 101 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 102 [chan receive]:
net/rpc.(*Client).Call(0xc2100e7480, 0x7364b0, 0xb, 0x6472e0, 0x100000001, ...)
	/usr/local/go/src/pkg/net/rpc/client.go:313 +0xa6
github.com/mitchellh/packer/packer/rpc.(*builder).Run(0xc210086d30, 0x7f8f71437b08, 0xc210283c60, 0x7f8f71437b50, 0xc210288450, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/builder.go:51 +0x168
github.com/mitchellh/packer/packer/plugin.(*cmdBuilder).Run(0xc21011b0a0, 0x7f8f71437b08, 0xc210283c60, 0x7f8f71437b50, 0xc210288450, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/builder.go:28 +0xea
github.com/mitchellh/packer/packer/rpc.(*BuilderServer).Run(0xc21011b0e0, 0x1, 0xc21028b0d0, 0x0, 0x0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/builder.go:93 +0x28b
reflect.Value.call(0x69dc80, 0x6e3210, 0x130, 0x725440, 0x4, ...)
	/usr/local/go/src/pkg/reflect/value.go:474 +0xe0b
reflect.Value.Call(0x69dc80, 0x6e3210, 0x130, 0x7f8f6c238ee8, 0x3, ...)
	/usr/local/go/src/pkg/reflect/value.go:345 +0x9d
net/rpc.(*service).call(0xc2100e34c0, 0xc2100e3480, 0xc210000470, 0xc21011a300, 0xc210246080, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:381 +0x159
created by net/rpc.(*Server).ServeCodec
	/usr/local/go/src/pkg/net/rpc/server.go:452 +0x3bb

goroutine 103 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 104 [semacquire]:
sync.runtime_Syncsemacquire(0xc21022f940)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21022f930)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21022f900, 0xc210291000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21028b0e0, 0xc210291000, 0x1000, 0x1000, 0xa80008, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21027eba0, 0xc210291000, 0x1000, 0x1000, 0x0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc21027ec00)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc21027ec00, 0xc210288430, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc21027ec00, 0xc210288430, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc21027ec00, 0xc210288430, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc21027ec00, 0xc210288430, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210290000, 0xc21029003c)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210290000, 0xc21028a900, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210290000, 0x62f460, 0xc21028a990, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210290000, 0x62f460, 0xc21028a990, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc21028a7e0, 0xc21028a990, 0xc21034f410, 0x0)
	/usr/local/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc21027ec60)
	/usr/local/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 105 [semacquire]:
sync.runtime_Syncsemacquire(0xc21022fac0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21022fab0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21022fa80, 0xc21029c000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21028b198, 0xc21029c000, 0x1000, 0x1000, 0x8, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21027ed20, 0xc21029c000, 0x1000, 0x1000, 0x1000000004100d4, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc21027ed80)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc21027ed80, 0xc210288480, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc21027ed80, 0xc210288480, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc21027ed80, 0xc210288480, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc21027ed80, 0xc210288480, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2102900f0, 0xc2101ed900)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2102900f0, 0xc210283c00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2102900f0, 0x62f420, 0xc210283ce0, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2102900f0, 0x62f420, 0xc210283ce0, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc21028ac60, 0xc210283ce0, 0x425c01, 0x10)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210276e40, 0x7f8f71432ea0, 0xc21028ac60, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210276e40, 0x7f8f71432ea0, 0xc21028ac60, 0xc210292200, 0xc2102d6720, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210276e40, 0x7f8f71432ea0, 0xc21028ac60)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210276e40, 0x7f8f71432cf0, 0xc21027ed20)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc210283c80)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*builder).Run
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/builder.go:48 +0xe0

goroutine 106 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 117 [chan receive]:
net/rpc.(*Client).Call(0xc21027ec60, 0x737c50, 0x8, 0x62e1e0, 0xc2102b8cc0, ...)
	/usr/local/go/src/pkg/net/rpc/client.go:313 +0xa6
github.com/mitchellh/packer/packer/rpc.(*hook).Run(0xc210288450, 0xc2102bb190, 0x10, 0x7f8f71437b08, 0xc2102a2a60, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/hook.go:42 +0x1a5
github.com/mitchellh/packer/packer/rpc.(*HookServer).Run(0xc210283ca0, 0xc2102b8750, 0xc2102bb1a0, 0x0, 0x0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/hook.go:59 +0x248
reflect.Value.call(0x69e860, 0x6c9e00, 0x130, 0x725440, 0x4, ...)
	/usr/local/go/src/pkg/reflect/value.go:474 +0xe0b
reflect.Value.Call(0x69e860, 0x6c9e00, 0x130, 0x7f8f6c22eee8, 0x3, ...)
	/usr/local/go/src/pkg/reflect/value.go:345 +0x9d
net/rpc.(*service).call(0xc210276ec0, 0xc210276e40, 0xc21028b230, 0xc210292000, 0xc2102a21e0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:381 +0x159
created by net/rpc.(*Server).ServeCodec
	/usr/local/go/src/pkg/net/rpc/server.go:452 +0x3bb

goroutine 118 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 119 [semacquire]:
sync.runtime_Syncsemacquire(0xc21022fc40)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21022fc30)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21022fc00, 0xc2102c0000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21028bf00, 0xc2102c0000, 0x1000, 0x1000, 0xa80008, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21029ea20, 0xc2102c0000, 0x1000, 0x1000, 0x0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc21029ec00)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc21029ec00, 0xc2102bb1b0, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc21029ec00, 0xc2102bb1b0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc21029ec00, 0xc2102bb1b0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc21029ec00, 0xc2102bb1b0, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2102901e0, 0xc21029021c)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2102901e0, 0xc2102b8d00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2102901e0, 0x62f460, 0xc2102b8de0, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2102901e0, 0x62f460, 0xc2102b8de0, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc2102b8bd0, 0xc2102b8de0, 0xc21034f3b0, 0x0)
	/usr/local/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc21029ec60)
	/usr/local/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 120 [semacquire]:
sync.runtime_Syncsemacquire(0xc21022fe80)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21022fe70)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21022fe40, 0xc2102c6000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2102c1020, 0xc2102c6000, 0x1000, 0x1000, 0x8, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21029ed20, 0xc2102c6000, 0x1000, 0x1000, 0x1000000004100d4, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc21029ed80)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc21029ed80, 0xc2102bb230, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc21029ed80, 0xc2102bb230, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc21029ed80, 0xc2102bb230, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc21029ed80, 0xc2102bb230, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2102902d0, 0xc2102d5400)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2102902d0, 0xc2102a2b00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2102902d0, 0x62f420, 0xc2102a2be0, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2102902d0, 0x62f420, 0xc2102a2be0, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc2102c40f0, 0xc2102a2be0, 0x425c01, 0x10)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2102ba240, 0x7f8f71432ea0, 0xc2102c40f0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2102ba240, 0x7f8f71432ea0, 0xc2102c40f0, 0xc210292900, 0xc2102d6700, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2102ba240, 0x7f8f71432ea0, 0xc2102c40f0)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2102ba240, 0x7f8f71432cf0, 0xc21029ed20)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc2102a2a80)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*hook).Run
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/hook.go:34 +0xc6

goroutine 121 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 760 [semacquire]:
sync.runtime_Syncsemacquire(0xc2104af1c0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2104af1b0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2104af180, 0xc2104b9000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2104a6ae0, 0xc2104b9000, 0x1000, 0x1000, 0x8, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21048bc00, 0xc2104b9000, 0x1000, 0x1000, 0x1000000004100d4, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc21048bcc0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc21048bcc0, 0xc2104ae090, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc21048bcc0, 0xc2104ae090, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc21048bcc0, 0xc2104ae090, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc21048bcc0, 0xc2104ae090, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2104615a0, 0xc2102d5000)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2104615a0, 0xc2104a2b00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2104615a0, 0x62f420, 0xc2104a2b60, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2104615a0, 0x62f420, 0xc2104a2b60, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc2104abd80, 0xc2104a2b60, 0x425c01, 0x10)
	/usr/local/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2104ad140, 0x7f8f71432ea0, 0xc2104abd80, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2104ad140, 0x7f8f71432ea0, 0xc2104abd80, 0xc2104a1500, 0xc2104bc080, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2104ad140, 0x7f8f71432ea0, 0xc2104abd80)
	/usr/local/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2104ad140, 0x7f8f71432cf0, 0xc21048bc00)
	/usr/local/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc2104a2b00)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*provisioner).Provision
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/provisioner.go:41 +0xb5

goroutine 759 [semacquire]:
sync.runtime_Syncsemacquire(0xc2104af040)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2104af030)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2104af000, 0xc2104b7000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2104a6a38, 0xc2104b7000, 0x1000, 0x1000, 0xa80008, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21048ba80, 0xc2104b7000, 0x1000, 0x1000, 0x0, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc21048bae0)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc21048bae0, 0xc2104ae040, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc21048bae0, 0xc2104ae040, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc21048bae0, 0xc2104ae040, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc21048bae0, 0xc2104ae040, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2104614b0, 0xc2104614ec)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2104614b0, 0xc2104aba00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2104614b0, 0x62f460, 0xc2104abab0, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2104614b0, 0x62f460, 0xc2104abab0, 0x0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc2104ab930, 0xc2104abab0, 0xc21034f350, 0x0)
	/usr/local/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc21048bb40)
	/usr/local/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 757 [chan receive]:
net/rpc.(*Client).Call(0xc2101e5720, 0x750b10, 0x15, 0x6472e0, 0xc200000001, ...)
	/usr/local/go/src/pkg/net/rpc/client.go:313 +0xa6
github.com/mitchellh/packer/packer/rpc.(*provisioner).Provision(0xc210086c30, 0x7f8f71437b08, 0xc2104a2ae0, 0x7f8f7143c478, 0xc2104ae060, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/provisioner.go:43 +0x137
github.com/mitchellh/packer/packer/plugin.(*cmdProvisioner).Provision(0xc2100855e0, 0x7f8f71437b08, 0xc2104a2ae0, 0x7f8f7143c478, 0xc2104ae060, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/plugin/provisioner.go:28 +0xa8
github.com/mitchellh/packer/packer/rpc.(*ProvisionerServer).Provision(0xc210085660, 0xe, 0xc2104ae030, 0x0, 0x0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/provisioner.go:69 +0x1e4
reflect.Value.call(0x69ecc0, 0x6e3410, 0x130, 0x725440, 0x4, ...)
	/usr/local/go/src/pkg/reflect/value.go:474 +0xe0b
reflect.Value.Call(0x69ecc0, 0x6e3410, 0x130, 0x7f8f6c1faee8, 0x3, ...)
	/usr/local/go/src/pkg/reflect/value.go:345 +0x9d
net/rpc.(*service).call(0xc210229040, 0xc210229000, 0xc210168850, 0xc21006c800, 0xc2102834e0, ...)
	/usr/local/go/src/pkg/net/rpc/server.go:381 +0x159
created by net/rpc.(*Server).ServeCodec
	/usr/local/go/src/pkg/net/rpc/server.go:452 +0x3bb

goroutine 761 [runnable]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1031 [chan receive]:
github.com/mitchellh/packer/packer.(*RemoteCmd).Wait(0xc21027e420)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/communicator.go:180 +0x98
github.com/mitchellh/packer/packer/rpc.func·003()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:221 +0x95
created by github.com/mitchellh/packer/packer/rpc.(*CommunicatorServer).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:224 +0x9f5

goroutine 1018 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1015 [semacquire]:
sync.runtime_Syncsemacquire(0xc210402040)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc210402030)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210402000, 0xc21041e000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210249d58, 0xc21041e000, 0x1000, 0x1000, 0x4, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21027e840, 0xc21041e000, 0x1000, 0x1000, 0xa8af00, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc21027e900)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc21027e900, 0xc21027d7b0, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc21027e900, 0xc21027d7b0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc21027e900, 0xc21027d7b0, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc21027e900, 0xc21027d7b0, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210461000, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210461000, 0xc210249f00, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210461000, 0x62dfe0, 0xc210249f48, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210461000, 0x62dfe0, 0xc210249f48, 0x7f8f71432d50, 0xc21027e840)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
github.com/mitchellh/packer/packer/rpc.func·001()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:91 +0x23a
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:100 +0x2f3

goroutine 1009 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·002()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:161 +0x3b
created by github.com/mitchellh/packer/packer/rpc.(*CommunicatorServer).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:165 +0x115

goroutine 1013 [semacquire]:
sync.runtime_Syncsemacquire(0xc21022f700)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21022f6f0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21022f6c0, 0xc210494000, 0x8000, 0x8000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210249cd8, 0xc210494000, 0x8000, 0x8000, 0x52, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21027e720, 0xc210494000, 0x8000, 0x8000, 0x52, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
io.Copy(0x7f8f71432d28, 0xc21027e4e0, 0x7f8f71432d50, 0xc21027e720, 0x3844, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
github.com/mitchellh/packer/packer/rpc.serveSingleCopy(0x730c00, 0x6, 0xc21004f1c0, 0xc20000001f, 0x7f8f71432d28, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:273 +0x1f9
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:68 +0x1d8

goroutine 1011 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1023 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1012 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1010 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1022 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1017 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 758 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1021 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1014 [semacquire]:
sync.runtime_Syncsemacquire(0xc21022fd00)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21022fcf0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21022fcc0, 0xc210470000, 0x8000, 0x8000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210249d08, 0xc210470000, 0x8000, 0x8000, 0x8000, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21027e7e0, 0xc210470000, 0x8000, 0x8000, 0x8000, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
io.Copy(0x7f8f71432d28, 0xc21027e540, 0x7f8f71432d50, 0xc21027e7e0, 0x0, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
github.com/mitchellh/packer/packer/rpc.serveSingleCopy(0x730bc0, 0x6, 0xc21004f1c0, 0xc200000020, 0x7f8f71432d28, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:273 +0x1f9
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:73 +0x273

goroutine 1016 [runnable]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1020 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·002()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:161 +0x3b
created by github.com/mitchellh/packer/packer/rpc.(*CommunicatorServer).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:165 +0x115

goroutine 1029 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1026 [semacquire]:
sync.runtime_Syncsemacquire(0xc210402580)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc210402570)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210402540, 0xc210480000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101682e8, 0xc210480000, 0x1000, 0x1000, 0x100000543, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210269120, 0xc210480000, 0x1000, 0x1000, 0x425c8a, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
bufio.(*Reader).fill(0xc210269240)
	/usr/local/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc210269240, 0xc21027d890, 0x1, 0x9, 0x1, ...)
	/usr/local/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7f8f71432da0, 0xc210269240, 0xc21027d890, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7f8f71432da0, 0xc210269240, 0xc21027d890, 0x1, 0x9, ...)
	/usr/local/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7f8f71432da0, 0xc210269240, 0xc21027d890, 0x9, 0x9, ...)
	/usr/local/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2104610f0, 0x0)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2104610f0, 0xc210168500, 0x160)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2104610f0, 0x62dfe0, 0xc210168548, 0x160, 0x0, ...)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2104610f0, 0x62dfe0, 0xc210168548, 0x7f8f71432d50, 0xc210269120)
	/usr/local/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
github.com/mitchellh/packer/packer/rpc.func·001()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:91 +0x23a
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:100 +0x2f3

goroutine 1024 [runnable]:
net.runtime_pollWait(0x7f8f71432b40, 0x77, 0x0)
	/usr/local/go/src/pkg/runtime/netpoll.goc:116 +0x6a
net.(*pollDesc).Wait(0xc21004ffb0, 0x77, 0x7f8f714310e8, 0xb)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:81 +0x34
net.(*pollDesc).WaitWrite(0xc21004ffb0, 0xb, 0x7f8f714310e8)
	/usr/local/go/src/pkg/net/fd_poll_runtime.go:90 +0x30
net.(*netFD).Write(0xc21004ff50, 0xc21042a828, 0x4, 0x4, 0x0, ...)
	/usr/local/go/src/pkg/net/fd_unix.go:297 +0x3e2
net.(*conn).Write(0xc210000628, 0xc21042a828, 0x4, 0x4, 0x4, ...)
	/usr/local/go/src/pkg/net/net.go:130 +0xc5
encoding/binary.Write(0x7f8f71432c48, 0xc210000628, 0x7f8f71432c70, 0xc210000628, 0x6472e0, ...)
	/usr/local/go/src/pkg/encoding/binary/binary.go:332 +0x1a77
github.com/mitchellh/packer/packer/rpc.(*MuxConn).write(0xc21004f1c0, 0x1a10402301, 0x4a9204, 0xc210478000, 0x6d, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:418 +0x273
github.com/mitchellh/packer/packer/rpc.(*Stream).write(0xc21027eae0, 0x44b404, 0xc210478000, 0x6d, 0x8000, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:570 +0x68
github.com/mitchellh/packer/packer/rpc.(*Stream).Write(0xc21027eae0, 0xc210478000, 0x6d, 0x8000, 0x6d, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:531 +0x1cd
io.Copy(0x7f8f71432d28, 0xc21027eae0, 0x7f8f71432d50, 0xc210269060, 0x56c0, ...)
	/usr/local/go/src/pkg/io/io.go:354 +0x236
github.com/mitchellh/packer/packer/rpc.serveSingleCopy(0x730c00, 0x6, 0xc2100dad90, 0xc200000016, 0x7f8f71432d28, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:273 +0x1f9
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:68 +0x1d8

goroutine 1025 [semacquire]:
sync.runtime_Syncsemacquire(0xc2104024c0)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2104024b0)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210402480, 0xc21037c000, 0x8000, 0x8000, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101682c8, 0xc21037c000, 0x8000, 0x8000, 0x8000, ...)
	/usr/local/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2102690c0, 0xc21037c000, 0x8000, 0x8000, 0x8000, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:519 +0x53
io.Copy(0x7f8f71432d28, 0xc21027ede0, 0x7f8f71432d50, 0xc2102690c0, 0x0, ...)
	/usr/local/go/src/pkg/io/io.go:352 +0x1c8
github.com/mitchellh/packer/packer/rpc.serveSingleCopy(0x730bc0, 0x6, 0xc2100dad90, 0xc200000017, 0x7f8f71432d28, ...)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:273 +0x1f9
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:73 +0x273

goroutine 1027 [semacquire]:
sync.runtime_Syncsemacquire(0xc210402438)
	/usr/local/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc210402428)
	/usr/local/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).write(0xc2104023c0, 0xc2104bbb40, 0x59, 0x59, 0x0, ...)
	/usr/local/go/src/pkg/io/pipe.go:94 +0x1fe
io.(*PipeWriter).Write(0xc2101682b0, 0xc2104bbb40, 0x59, 0x59, 0x59, ...)
	/usr/local/go/src/pkg/io/pipe.go:161 +0x5f
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:491 +0x9f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1028 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:484 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:495 +0x169

goroutine 1030 [chan receive]:
github.com/mitchellh/packer/packer.(*RemoteCmd).Wait(0xc21027e9c0)
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/communicator.go:180 +0x98
github.com/mitchellh/packer/packer/rpc.func·003()
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:221 +0x95
created by github.com/mitchellh/packer/packer/rpc.(*CommunicatorServer).Start
	/home/vagrant/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:224 +0x9f5