packer v0.5.1 crash

gistfile1.txt

==> amazon-ebs: Pausing before cleanup of step 'StepConnectSSH'. Press any key to continue. panic: Failed to write data, buffer full for stream 16

goroutine 16 [running]:
runtime.panic(0x248580, 0xc210735310)
	/Users/mitchellh/go/src/pkg/runtime/panic.c:266 +0xb6
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc2100452a0)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:415 +0x14c1
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 1 [chan receive]:
net/rpc.(*Client).Call(0xc2100dc1e0, 0x3393d0, 0xb, 0x22f1e0, 0xc210046780, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:313 +0xa6
github.com/mitchellh/packer/packer/rpc.(*command).Run(0xc21009e0e0, 0x7a19d0, 0xc2100566c0, 0xc21000a020, 0x3, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/command.go:48 +0x127
github.com/mitchellh/packer/packer/plugin.(*cmdCommand).Run(0xc2100466e0, 0x7a19d0, 0xc2100566c0, 0xc21000a020, 0x3, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/command.go:29 +0xc1
github.com/mitchellh/packer/packer.(*coreEnvironment).Cli(0xc2100566c0, 0xc21000a010, 0x4, 0x4, 0x0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/environment.go:269 +0x8d4
main.wrappedMain(0x0)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer.go:153 +0x10ce
main.realMain(0x0)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer.go:73 +0x704
main.main()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer.go:22 +0x1e

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

goroutine 5 [syscall]:
syscall.Syscall(0x3, 0x0, 0xc210083000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0x0, 0xc210083000, 0x8000, 0x8000, 0x5eb2b, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0x0, 0xc210083000, 0x8000, 0x8000, 0x1, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210000000, 0xc210083000, 0x8000, 0x8000, 0x1, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210000000, 0xc210083000, 0x8000, 0x8000, 0x1, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7a1038, 0xc2100003c0, 0x7a1568, 0xc210000000, 0x4, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
main.func·003()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/stdin.go:23 +0x92
created by main.setupStdin
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/stdin.go:24 +0xae

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

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

goroutine 8 [syscall]:
syscall.Syscall(0x3, 0x5, 0xc2100a2000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0x5, 0xc2100a2000, 0x8000, 0x8000, 0x19e5d, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0x5, 0xc2100a2000, 0x8000, 0x8000, 0x3c95a8, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc2100005a8, 0xc2100a2000, 0x8000, 0x8000, 0xc2100a2000, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc2100005a8, 0xc2100a2000, 0x8000, 0x8000, 0x4f, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7a1a80, 0xc210000560, 0x7a1568, 0xc2100005a8, 0x4f, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21009c340)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 9 [syscall]:
syscall.Syscall(0x3, 0x7, 0xc2100b8000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0x7, 0xc2100b8000, 0x8000, 0x8000, 0x19e5d, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0x7, 0xc2100b8000, 0x8000, 0x8000, 0x3c95a8, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc2100005c8, 0xc2100b8000, 0x8000, 0x8000, 0xc2100b8000, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc2100005c8, 0xc2100b8000, 0x8000, 0x8000, 0x3f, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7a1a80, 0xc210000578, 0x7a1568, 0xc2100005c8, 0x49f, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21009c3a0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 10 [syscall]:
syscall.Syscall6(0x7, 0xbcf, 0xc210000608, 0x0, 0xc210054a20, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:41 +0x5
syscall.wait4(0xbcf, 0xc210000608, 0x0, 0xc210054a20, 0x26ab2, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:32 +0x7d
syscall.Wait4(0xbcf, 0x7f1e24, 0x0, 0xc210054a20, 0x11fec, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_bsd.go:126 +0x6e
os.(*Process).wait(0xc21009c6a0, 0x0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc21009c6a0, 0x259d9, 0x800, 0x0)
	/Users/mitchellh/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc210038280, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 11 [semacquire]:
sync.runtime_Syncsemacquire(0xc21006f280)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21006f270)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21006f240, 0xc2100c9000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000570, 0xc2100c9000, 0x1000, 0x1000, 0x1ed69, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc210056060)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc210056060, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc210056060, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc210056060, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc21006a540, 0x7a1af8, 0xc210000570)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 12 [semacquire]:
sync.runtime_Syncsemacquire(0xc21006f1c0)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21006f1b0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21006f180, 0xc2100db000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210000558, 0xc2100db000, 0x1000, 0x1000, 0x25619, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2100da000)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2100da000, 0xc2100db00a, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2100da000, 0xc21005690a, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

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

goroutine 15 [runnable]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc2100452a0)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:222 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 17 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 18 [semacquire]:
sync.runtime_Syncsemacquire(0xc2100ea040)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2100ea030)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2100ea000, 0xc210114000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2100003e8, 0xc210114000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100dc120, 0xc210114000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2100dc180)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100dc180, 0xc21009e0c0, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2100dc180, 0xc21009e0c0, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2100dc180, 0xc21009e0c0, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2100dc180, 0xc21009e0c0, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc210113000, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc210113000, 0xc210110000, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc210113000, 0x230660, 0xc210110030, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc210113000, 0x230660, 0xc210110030, 0x2eb040, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc21006ad20, 0xc210110030, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc2100dc1e0)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 19 [semacquire]:
sync.runtime_Syncsemacquire(0xc210117040)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc210117030)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210117000, 0xc210146000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21010f030, 0xc210146000, 0x1000, 0x1000, 0x26b81, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100560c0, 0xc210146000, 0x1000, 0x1000, 0x26b81, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2100dc2a0)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100dc2a0, 0xc210144010, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2100dc2a0, 0xc210144010, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2100dc2a0, 0xc210144010, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2100dc2a0, 0xc210144010, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2101130f0, 0xc21011312c)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2101130f0, 0xc210134400, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2101130f0, 0x230620, 0xc2101344c0, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2101130f0, 0x230620, 0xc2101344c0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210140300, 0xc2101344c0, 0x11bd5, 0xc2100cc800)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210111080, 0x7a3758, 0xc210140300, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210111080, 0x7a3758, 0xc210140300, 0xc210116080, 0xc21014b500, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210111080, 0x7a3758, 0xc210140300)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210111080, 0x7a2cf0, 0xc2100560c0)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc210046740)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*command).Run
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/command.go:42 +0xa1

goroutine 20 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

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

goroutine 22 [syscall]:
syscall.Syscall(0x3, 0x9, 0xc21015b000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0x9, 0xc21015b000, 0x8000, 0x8000, 0x19e5d, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0x9, 0xc21015b000, 0x8000, 0x8000, 0x3c95a8, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210147400, 0xc21015b000, 0x8000, 0x8000, 0xc21015b000, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210147400, 0xc21015b000, 0x8000, 0x8000, 0x4f, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7a1a80, 0xc2101473b8, 0x7a1568, 0xc210147400, 0x4f, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21014b620)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 23 [syscall]:
syscall.Syscall(0x3, 0xb, 0xc210165000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0xb, 0xc210165000, 0x8000, 0x8000, 0x19e5d, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0xb, 0xc210165000, 0x8000, 0x8000, 0x3c95a8, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc210147420, 0xc210165000, 0x8000, 0x8000, 0xc210165000, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc210147420, 0xc210165000, 0x8000, 0x8000, 0x49, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7a1a80, 0xc2101473d0, 0x7a1568, 0xc210147420, 0x25b6, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc21014b680)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 24 [syscall]:
syscall.Syscall6(0x7, 0xbd0, 0xc21013f148, 0x0, 0xc2100542d0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:41 +0x5
syscall.wait4(0xbd0, 0xc21013f148, 0x0, 0xc2100542d0, 0x26ab2, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:32 +0x7d
syscall.Wait4(0xbd0, 0xb74e24, 0x0, 0xc2100542d0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_bsd.go:126 +0x6e
os.(*Process).wait(0xc21014b980, 0x0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc21014b980, 0x259d9, 0x800, 0x0)
	/Users/mitchellh/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc210038000, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 25 [semacquire]:
sync.runtime_Syncsemacquire(0xc210153100)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2101530f0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2101530c0, 0xc21015a000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101473c8, 0xc21015a000, 0x1000, 0x1000, 0x1ed69, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc21010e6c0)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc21010e6c0, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc21010e6c0, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc21010e6c0, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc2101521b0, 0x7a1af8, 0xc2101473c8)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 26 [semacquire]:
sync.runtime_Syncsemacquire(0xc210153040)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc210153030)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210153000, 0xc210164000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101473b0, 0xc210164000, 0x1000, 0x1000, 0x25619, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc21010e720)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc21010e720, 0xc21016400a, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc21010e720, 0xc21010e60a, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

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

goroutine 28 [select]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc210192150)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:222 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 29 [runnable]:
syscall.Syscall(0x3, 0xa, 0xc210e45748, 0x4, 0x4, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:36 +0x61
syscall.read(0xa, 0xc210e45748, 0x4, 0x8, 0x72, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0xa, 0xc210e45748, 0x4, 0x8, 0x247fe0, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
net.(*netFD).Read(0xc210192000, 0xc210e45748, 0x4, 0x8, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/fd_unix.go:200 +0x1eb
net.(*conn).Read(0xc210191018, 0xc210e45748, 0x4, 0x8, 0x8, ...)
	/Users/mitchellh/go/src/pkg/net/net.go:122 +0xc5
io.ReadAtLeast(0x7a2cc8, 0xc210191018, 0xc210e45748, 0x4, 0x8, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2cc8, 0xc210191018, 0xc210e45748, 0x4, 0x8, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/binary.Read(0x7a2cc8, 0xc210191018, 0x7a2c70, 0xc210191018, 0x22f720, ...)
	/Users/mitchellh/go/src/pkg/encoding/binary/binary.go:146 +0x103
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc210192150)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:282 +0x632
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 30 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 31 [semacquire]:
sync.runtime_Syncsemacquire(0xc210194040)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc210194030)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210194000, 0xc2101ba000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210191028, 0xc2101ba000, 0x1000, 0x1000, 0x17024, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100da0c0, 0xc2101ba000, 0x1000, 0x1000, 0xc210055a25, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2101b5060)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101b5060, 0xc2101b4020, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2101b5060, 0xc2101b4020, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2101b5060, 0xc2101b4020, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2101b5060, 0xc2101b4020, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2101b9000, 0xc2101b903c)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2101b9000, 0xc2101b2000, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2101b9000, 0x230660, 0xc2101b2030, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2101b9000, 0x230660, 0xc2101b2030, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc2101b71b0, 0xc2101b2030, 0xc2103cccc0, 0x0)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc2101b50c0)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 32 [semacquire]:
sync.runtime_Syncsemacquire(0xc2101c0040)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2101c0030)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2101c0000, 0xc2101f7000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101b0030, 0xc2101f7000, 0x1000, 0x1000, 0xc2100559d0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210056ae0, 0xc2101f7000, 0x1000, 0x1000, 0xc2104292d0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2100dc360)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100dc360, 0xc210144050, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2100dc360, 0xc210144050, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2100dc360, 0xc210144050, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2100dc360, 0xc210144050, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2101131e0, 0xc210082a00)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2101131e0, 0xc210134400, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2101131e0, 0x230620, 0xc2101344e0, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2101131e0, 0x230620, 0xc2101344e0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc2101405d0, 0xc2101344e0, 0x11bd5, 0xc210210800)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2101b3140, 0x7a3758, 0xc2101405d0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2101b3140, 0x7a3758, 0xc2101405d0, 0xc2101be100, 0xc210134580, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2101b3140, 0x7a3758, 0xc2101405d0)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2101b3140, 0x7a2cf0, 0xc210056ae0)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc2101bd040)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Builder
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:127 +0x140

goroutine 33 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 35 [syscall]:
syscall.Syscall(0x3, 0xc, 0xc2101fe000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0xc, 0xc2101fe000, 0x8000, 0x8000, 0x19e5d, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0xc, 0xc2101fe000, 0x8000, 0x8000, 0x3c95a8, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc21013f260, 0xc2101fe000, 0x8000, 0x8000, 0xc2101fe000, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc21013f260, 0xc2101fe000, 0x8000, 0x8000, 0x4f, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7a1a80, 0xc21013f218, 0x7a1568, 0xc21013f260, 0x4f, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc210134620)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 36 [syscall]:
syscall.Syscall(0x3, 0xe, 0xc210206000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0xe, 0xc210206000, 0x8000, 0x8000, 0x19e5d, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0xe, 0xc210206000, 0x8000, 0x8000, 0x3c95a8, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc21013f280, 0xc210206000, 0x8000, 0x8000, 0xc210206000, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc21013f280, 0xc210206000, 0x8000, 0x8000, 0x42, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7a1a80, 0xc21013f230, 0x7a1568, 0xc21013f280, 0x2ee, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc210134680)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 37 [syscall]:
syscall.Syscall6(0x7, 0xbd1, 0xc2101470e0, 0x0, 0xc21014e1b0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:41 +0x5
syscall.wait4(0xbd1, 0xc2101470e0, 0x0, 0xc21014e1b0, 0x26ab2, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:32 +0x7d
syscall.Wait4(0xbd1, 0x185be24, 0x0, 0xc21014e1b0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_bsd.go:126 +0x6e
os.(*Process).wait(0xc210134980, 0x0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc210134980, 0x259d9, 0x800, 0x0)
	/Users/mitchellh/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc210038140, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 38 [semacquire]:
sync.runtime_Syncsemacquire(0xc2100ea400)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2100ea3f0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2100ea3c0, 0xc21021b000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21013f228, 0xc21021b000, 0x1000, 0x1000, 0x1ed69, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc21010e960)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc21010e960, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc21010e960, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc21010e960, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc210140ae0, 0x7a1af8, 0xc21013f228)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 39 [semacquire]:
sync.runtime_Syncsemacquire(0xc2100ea340)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2100ea330)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2100ea300, 0xc21021d000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21013f210, 0xc21021d000, 0x1000, 0x1000, 0x25619, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc21010e9c0)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc21010e9c0, 0xc21021d00a, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc21010e9c0, 0xc2100dc50a, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

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

goroutine 41 [select]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc2101352a0)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:222 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 42 [IO wait]:
net.runtime_pollWait(0x7a29f0, 0x72, 0x0)
	/Users/mitchellh/go/src/pkg/runtime/netpoll.goc:116 +0x6a
net.(*pollDesc).Wait(0xc2101351b0, 0x72, 0x7a0f00, 0x23)
	/Users/mitchellh/go/src/pkg/net/fd_poll_runtime.go:81 +0x34
net.(*pollDesc).WaitRead(0xc2101351b0, 0x23, 0x7a0f00)
	/Users/mitchellh/go/src/pkg/net/fd_poll_runtime.go:86 +0x30
net.(*netFD).Read(0xc210135150, 0xc2109a4548, 0x1, 0x1, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/fd_unix.go:204 +0x2a0
net.(*conn).Read(0xc21010f060, 0xc2109a4548, 0x1, 0x1, 0x8, ...)
	/Users/mitchellh/go/src/pkg/net/net.go:122 +0xc5
io.ReadAtLeast(0x7a2cc8, 0xc21010f060, 0xc2109a4548, 0x1, 0x1, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2cc8, 0xc21010f060, 0xc2109a4548, 0x1, 0x1, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/binary.Read(0x7a2cc8, 0xc21010f060, 0x7a2c70, 0xc21010f060, 0x2b05a0, ...)
	/Users/mitchellh/go/src/pkg/encoding/binary/binary.go:215 +0x120c
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc2101352a0)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:270 +0x182
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 43 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 44 [semacquire]:
sync.runtime_Syncsemacquire(0xc2101171c0)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2101171b0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210117180, 0xc21024e000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21010f070, 0xc21024e000, 0x1000, 0x1000, 0x680948, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21018f0c0, 0xc21024e000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc210056d80)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc210056d80, 0xc21009e410, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc210056d80, 0xc21009e410, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc210056d80, 0xc21009e410, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc210056d80, 0xc21009e410, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc21024d000, 0xc21024d03c)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc21024d000, 0xc2101b7200, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc21024d000, 0x230660, 0xc2101b72d0, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc21024d000, 0x230660, 0xc2101b72d0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc21009f6f0, 0xc2101b72d0, 0xc21010db80, 0x0)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc210056de0)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 45 [semacquire]:
sync.runtime_Syncsemacquire(0xc2101bb100)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2101bb0f0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2101bb0c0, 0xc21026d000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101b6070, 0xc21026d000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2101b5120, 0xc21026d000, 0x1000, 0x1000, 0xc21005ca00, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2101b5180)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101b5180, 0xc2101b4060, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2101b5180, 0xc2101b4060, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2101b5180, 0xc2101b4060, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2101b5180, 0xc2101b4060, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2101b90f0, 0xc21009a200)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2101b90f0, 0xc2101bd100, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2101b90f0, 0x230620, 0xc2101bd160, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2101b90f0, 0x230620, 0xc2101bd160, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc2101b74e0, 0xc2101bd160, 0x11bd5, 0xc21037e000)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210111280, 0x7a3758, 0xc2101b74e0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210111280, 0x7a3758, 0xc2101b74e0, 0xc210069900, 0xc2103dd120, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210111280, 0x7a3758, 0xc2101b74e0)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210111280, 0x7a2cf0, 0xc2101b5120)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc21009c740)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Provisioner
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:181 +0x140

goroutine 46 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 75 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 58 [semacquire]:
sync.runtime_Syncsemacquire(0xc21006f4c0)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21006f4b0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21006f480, 0xc2102cc000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2100006f8, 0xc2102cc000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210056f00, 0xc2102cc000, 0x1000, 0x1000, 0xc21005ca00, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc210056f60)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc210056f60, 0xc21009e450, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc210056f60, 0xc21009e450, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc210056f60, 0xc21009e450, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc210056f60, 0xc21009e450, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc21024d0f0, 0xc2103eb300)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc21024d0f0, 0xc21009c800, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc21024d0f0, 0x230620, 0xc21009c860, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc21024d0f0, 0x230620, 0xc21009c860, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc21009fc60, 0xc21009c860, 0x11bd5, 0xc210840000)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2102ad080, 0x7a3758, 0xc21009fc60, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2102ad080, 0x7a3758, 0xc21009fc60, 0xc2101dd400, 0xc2103ef260, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2102ad080, 0x7a3758, 0xc21009fc60)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2102ad080, 0x7a2cf0, 0xc210056f00)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc210134080)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Provisioner
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:181 +0x140

goroutine 59 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 61 [syscall]:
syscall.Syscall(0x3, 0x12, 0xc2102d8000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0x12, 0xc2102d8000, 0x8000, 0x8000, 0x19e5d, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0x12, 0xc2102d8000, 0x8000, 0x8000, 0x3c95a8, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc2101b0150, 0xc2102d8000, 0x8000, 0x8000, 0xc2102d8000, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc2101b0150, 0xc2102d8000, 0x8000, 0x8000, 0x4f, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7a1a80, 0xc2101b0108, 0x7a1568, 0xc2101b0150, 0x4f, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc2101342e0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 62 [syscall]:
syscall.Syscall(0x3, 0x14, 0xc2102e0000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0x14, 0xc2102e0000, 0x8000, 0x8000, 0x19e5d, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0x14, 0xc2102e0000, 0x8000, 0x8000, 0x3c95a8, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc2101b0170, 0xc2102e0000, 0x8000, 0x8000, 0xc2102e0000, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc2101b0170, 0xc2102e0000, 0x8000, 0x8000, 0x33, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.Copy(0x7a1a80, 0xc2101b0120, 0x7a1568, 0xc2101b0170, 0x18b, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
os/exec.func·003(0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:208 +0x62
os/exec.func·004(0xc210134380)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:277 +0x2c
created by os/exec.(*Cmd).Start
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:278 +0x86b

goroutine 63 [syscall]:
syscall.Syscall6(0x7, 0xbd3, 0xc2101470f0, 0x0, 0xc21014e240, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:41 +0x5
syscall.wait4(0xbd3, 0xc2101470f0, 0x0, 0xc21014e240, 0x26ab2, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:32 +0x7d
syscall.Wait4(0xbd3, 0x18bde24, 0x0, 0xc21014e240, 0x11fec, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_bsd.go:126 +0x6e
os.(*Process).wait(0xc2102d41e0, 0x0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc2102d41e0, 0x259d9, 0x800, 0x0)
	/Users/mitchellh/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc2101df500, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/os/exec/exec.go:311 +0x199
github.com/mitchellh/packer/packer/plugin.func·006()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:263 +0x93
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:276 +0xa4c

goroutine 64 [semacquire]:
sync.runtime_Syncsemacquire(0xc2101c0580)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2101c0570)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2101c0540, 0xc2102d5000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101b0118, 0xc2102d5000, 0x1000, 0x1000, 0x1ed69, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2101db9c0)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2101db9c0, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2101db9c0, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:355 +0xbf
bufio.(*Reader).ReadString(0xc2101db9c0, 0xa, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:395 +0x55
github.com/mitchellh/packer/packer/plugin.(*Client).logStderr(0xc2101b2840, 0x7a1af8, 0xc2101b0118)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:353 +0x5c
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:279 +0xa8f

goroutine 65 [semacquire]:
sync.runtime_Syncsemacquire(0xc2101c04c0)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2101c04b0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2101c0480, 0xc2102d7000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101b0100, 0xc2102d7000, 0x1000, 0x1000, 0x25619, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
bufio.(*Reader).fill(0xc2101dba20)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).ReadSlice(0xc2101dba20, 0xc2102d700a, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:274 +0x204
bufio.(*Reader).ReadBytes(0xc2101dba20, 0xc2101db90a, 0x0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:355 +0xbf
github.com/mitchellh/packer/packer/plugin.func·007()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:289 +0x90
created by github.com/mitchellh/packer/packer/plugin.(*Client).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/client.go:298 +0xb00

goroutine 67 [select]:
github.com/mitchellh/packer/packer/rpc.(*MuxConn).cleaner(0xc2101bc150)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:222 +0x3b5
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:71 +0xdd

goroutine 68 [IO wait]:
net.runtime_pollWait(0x7a28a0, 0x72, 0x0)
	/Users/mitchellh/go/src/pkg/runtime/netpoll.goc:116 +0x6a
net.(*pollDesc).Wait(0xc2101350d0, 0x72, 0x7a0f00, 0x23)
	/Users/mitchellh/go/src/pkg/net/fd_poll_runtime.go:81 +0x34
net.(*pollDesc).WaitRead(0xc2101350d0, 0x23, 0x7a0f00)
	/Users/mitchellh/go/src/pkg/net/fd_poll_runtime.go:86 +0x30
net.(*netFD).Read(0xc210135070, 0xc2103fc380, 0x1, 0x1, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/fd_unix.go:204 +0x2a0
net.(*conn).Read(0xc210147130, 0xc2103fc380, 0x1, 0x1, 0x8, ...)
	/Users/mitchellh/go/src/pkg/net/net.go:122 +0xc5
io.ReadAtLeast(0x7a2cc8, 0xc210147130, 0xc2103fc380, 0x1, 0x1, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2cc8, 0xc210147130, 0xc2103fc380, 0x1, 0x1, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/binary.Read(0x7a2cc8, 0xc210147130, 0x7a2c70, 0xc210147130, 0x2b05a0, ...)
	/Users/mitchellh/go/src/pkg/encoding/binary/binary.go:215 +0x120c
github.com/mitchellh/packer/packer/rpc.(*MuxConn).loop(0xc2101bc150)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:270 +0x182
created by github.com/mitchellh/packer/packer/rpc.NewMuxConn
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:72 +0xf4

goroutine 69 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 70 [semacquire]:
sync.runtime_Syncsemacquire(0xc21010c100)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21010c0f0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21010c0c0, 0xc210337000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210147140, 0xc210337000, 0x1000, 0x1000, 0x680948, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210056480, 0xc210337000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2101dbd20)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101dbd20, 0xc21010d300, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2101dbd20, 0xc21010d300, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2101dbd20, 0xc21010d300, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2101dbd20, 0xc21010d300, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2102af0f0, 0xc2102af12c)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2102af0f0, 0xc21009fc00, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2102af0f0, 0x230660, 0xc21009fcc0, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2102af0f0, 0x230660, 0xc21009fcc0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc2101b2f30, 0xc21009fcc0, 0xc2103f2e40, 0x0)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc2101dbd80)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 71 [semacquire]:
sync.runtime_Syncsemacquire(0xc21006f700)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21006f6f0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21006f6c0, 0xc210353000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2100007a8, 0xc210353000, 0x1000, 0x1000, 0x3109c0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2101b5000, 0xc210353000, 0x1000, 0x1000, 0x18, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc210056240)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc210056240, 0xc21009e470, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc210056240, 0xc21009e470, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc210056240, 0xc21009e470, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc210056240, 0xc21009e470, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc21024d1e0, 0xc210061780)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc21024d1e0, 0xc210402100, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc21024d1e0, 0x230620, 0xc210402120, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc21024d1e0, 0x230620, 0xc210402120, 0x3503, 0x798030)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc21009ff30, 0xc210402120, 0x11bd5, 0xc2100cc800)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2102ad5c0, 0x7a3758, 0xc21009ff30, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2102ad5c0, 0x7a3758, 0xc21009ff30, 0xc2101dd780, 0xc21009c8a0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2102ad5c0, 0x7a3758, 0xc21009ff30)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2102ad5c0, 0x7a2cf0, 0xc2101b5000)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc2102d4260)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Provisioner
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:181 +0x140

goroutine 72 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 92 [chan receive]:
net/rpc.(*Client).Call(0xc2101b50c0, 0x338e30, 0xb, 0x248880, 0x1, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:313 +0xa6
github.com/mitchellh/packer/packer/rpc.(*builder).Run(0xc2101b4040, 0x7acad0, 0xc2104027a0, 0x7acb18, 0xc2104045f0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/builder.go:51 +0x168
github.com/mitchellh/packer/packer/plugin.(*cmdBuilder).Run(0xc2101bd020, 0x7acad0, 0xc2104027a0, 0x7acb18, 0xc2104045f0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/plugin/builder.go:28 +0xea
github.com/mitchellh/packer/packer/rpc.(*BuilderServer).Run(0xc2101bd060, 0x1, 0xc2103fc7c0, 0x0, 0x0)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/builder.go:93 +0x28b
reflect.Value.call(0x29f5c0, 0x2e4e50, 0x130, 0x327b40, 0x4, ...)
	/Users/mitchellh/go/src/pkg/reflect/value.go:474 +0xe0b
reflect.Value.Call(0x29f5c0, 0x2e4e50, 0x130, 0x18b7ee8, 0x3, ...)
	/Users/mitchellh/go/src/pkg/reflect/value.go:345 +0x9d
net/rpc.(*service).call(0xc2101b3180, 0xc2101b3140, 0xc21013f1b0, 0xc2101be100, 0xc210134580, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:381 +0x159
created by net/rpc.(*Server).ServeCodec
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:452 +0x3bb

goroutine 74 [semacquire]:
sync.runtime_Syncsemacquire(0xc2101c0700)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2101c06f0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2101c06c0, 0xc210370000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101b0218, 0xc210370000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2101dbde0, 0xc210370000, 0x1000, 0x1000, 0xc21005cc40, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc210056360)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc210056360, 0xc21009e530, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc210056360, 0xc21009e530, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc210056360, 0xc21009e530, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc210056360, 0xc21009e530, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc21024d2d0, 0xc21024d30c)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc21024d2d0, 0xc21009ca00, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc21024d2d0, 0x230620, 0xc21009ca60, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc21024d2d0, 0x230620, 0xc21009ca60, 0x5703, 0x798030)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc21006ae10, 0xc21009ca60, 0x11bd5, 0xc21037e000)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210354080, 0x7a3758, 0xc21006ae10, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210354080, 0x7a3758, 0xc21006ae10, 0xc210069d00, 0xc21009c940, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210354080, 0x7a3758, 0xc21006ae10)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210354080, 0x7a2cf0, 0xc2101dbde0)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc21009c900)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Ui
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:191 +0xb4

goroutine 78 [semacquire]:
sync.runtime_Syncsemacquire(0xc2100ea4c0)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2100ea4b0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2100ea480, 0xc2103a7000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21013f2c8, 0xc2103a7000, 0x1000, 0x1000, 0x8, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100dc600, 0xc2103a7000, 0x1000, 0x1000, 0x1000000000114d4, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2100569c0)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2100569c0, 0xc21009e6c0, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2100569c0, 0xc21009e6c0, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2100569c0, 0xc21009e6c0, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2100569c0, 0xc21009e6c0, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc21024d3c0, 0xc21024d780)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc21024d3c0, 0xc2101bd100, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc21024d3c0, 0x230620, 0xc2101bd140, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc21024d3c0, 0x230620, 0xc2101bd140, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc2101b2a80, 0xc2101bd140, 0x11bd5, 0xc21023f000)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210354440, 0x7a3758, 0xc2101b2a80, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210354440, 0x7a3758, 0xc2101b2a80, 0xc210069e00, 0xc21009cb80, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210354440, 0x7a3758, 0xc2101b2a80)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210354440, 0x7a2cf0, 0xc2100dc600)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc21009cb40)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Ui
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:191 +0xb4

goroutine 79 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 82 [semacquire]:
sync.runtime_Syncsemacquire(0xc2100ea580)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2100ea570)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2100ea540, 0xc2103c4000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21013f2e8, 0xc2103c4000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100dc660, 0xc2103c4000, 0x1000, 0x1000, 0xc21005cc40, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc21010e780)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc21010e780, 0xc210037df0, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc21010e780, 0xc210037df0, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc21010e780, 0xc210037df0, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc21010e780, 0xc210037df0, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2103c3000, 0xc2103c303c)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2103c3000, 0xc210373600, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2103c3000, 0x230620, 0xc210373640, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2103c3000, 0x230620, 0xc210373640, 0x4a03, 0x798610)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210374240, 0xc210373640, 0x11bd5, 0xc210210800)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc210354840, 0x7a3758, 0xc210374240, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc210354840, 0x7a3758, 0xc210374240, 0xc2101be180, 0xc210373140, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc210354840, 0x7a3758, 0xc210374240)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc210354840, 0x7a2cf0, 0xc2100dc660)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc2101bd1c0)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Ui
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:191 +0xb4

goroutine 83 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 96 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 90 [semacquire]:
sync.runtime_Syncsemacquire(0xc2100ea640)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2100ea630)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc2100ea600, 0xc210427000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc21013f308, 0xc210427000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2100dc6c0, 0xc210427000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc210056b40)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc210056b40, 0xc210408010, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc210056b40, 0xc210408010, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc210056b40, 0xc210408010, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc210056b40, 0xc210408010, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2103c30f0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2103c30f0, 0xc210373600, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2103c30f0, 0x230620, 0xc210373680, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2103c30f0, 0x230620, 0xc210373680, 0x25619, 0xc210427000)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc21009f7b0, 0xc210373680, 0xc20fffa948, 0x1000000)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2101ae040, 0x7a3758, 0xc21009f7b0, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2101ae040, 0x7a3758, 0xc21009f7b0, 0x17024, 0xc20fff6080, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2101ae040, 0x7a3758, 0xc21009f7b0)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2101ae040, 0x7a2cf0, 0xc2100dc6c0)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc21009c180)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*EnvironmentServer).Cache
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/environment.go:137 +0xb4

goroutine 91 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 93 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 94 [semacquire]:
sync.runtime_Syncsemacquire(0xc21006fd00)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21006fcf0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21006fcc0, 0xc210445000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2103fc7d0, 0xc210445000, 0x1000, 0x1000, 0x18ffb30, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc2103fba80, 0xc210445000, 0x1000, 0x1000, 0xc210041456, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2103fbae0)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2103fbae0, 0xc2104045d0, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2103fbae0, 0xc2104045d0, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2103fbae0, 0xc2104045d0, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2103fbae0, 0xc2104045d0, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc21024d5a0, 0xc21024d5dc)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc21024d5a0, 0xc21009f700, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc21024d5a0, 0x230660, 0xc21009f7e0, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc21024d5a0, 0x230660, 0xc21009f7e0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc210405840, 0xc21009f7e0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:221 +0x3f
net/rpc.(*Client).input(0xc2103fbb40)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:107 +0xbf
created by net/rpc.NewClientWithCodec
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:199 +0x91

goroutine 95 [semacquire]:
sync.runtime_Syncsemacquire(0xc21010c4c0)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21010c4b0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21010c480, 0xc210462000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2101b00e0, 0xc210462000, 0x1000, 0x1000, 0x8, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210056ba0, 0xc210462000, 0x1000, 0x1000, 0x1000000000114d4, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2103fbc00)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2103fbc00, 0xc210404620, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2103fbc00, 0xc210404620, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2103fbc00, 0xc210404620, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2103fbc00, 0xc210404620, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc21024d690, 0xc210464340)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc21024d690, 0xc210402800, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc21024d690, 0x230620, 0xc210402800, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc21024d690, 0x230620, 0xc210402800, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
net/rpc.(*gobServerCodec).ReadRequestHeader(0xc210405c00, 0xc210402800, 0x26b81, 0x10)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:400 +0x3f
net/rpc.(*Server).readRequestHeader(0xc2103f0d00, 0x7a3758, 0xc210405c00, 0x0, 0x0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:551 +0x9b
net/rpc.(*Server).readRequest(0xc2103f0d00, 0x7a3758, 0xc210405c00, 0xc210158180, 0xc2105281a0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:518 +0xa0
net/rpc.(*Server).ServeCodec(0xc2103f0d00, 0x7a3758, 0xc210405c00)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:437 +0x66
net/rpc.(*Server).ServeConn(0xc2103f0d00, 0x7a2cf0, 0xc210056ba0)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:429 +0x140
github.com/mitchellh/packer/packer/rpc.(*Server).Serve(0xc2104027c0)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/server.go:148 +0x16a
created by github.com/mitchellh/packer/packer/rpc.(*builder).Run
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/builder.go:48 +0xe0

goroutine 373778 [chan receive]:
net/rpc.(*Client).Call(0xc2103fbb40, 0x32c7c0, 0x6, 0x248580, 0xc2109403d0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/client.go:313 +0xa6
github.com/mitchellh/packer/packer/rpc.(*Ui).Ask(0xc2104027a0, 0xc210ded500, 0x4b, 0x18fbb01, 0x18fbbe8, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/ui.go:29 +0xb8
github.com/mitchellh/packer/packer/rpc.(*UiServer).Ask(0xc210404610, 0xc210ded500, 0x4b, 0xc210dec240, 0x0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/ui.go:63 +0x55
reflect.Value.call(0x2a0920, 0x2f5450, 0x130, 0x327b40, 0x4, ...)
	/Users/mitchellh/go/src/pkg/reflect/value.go:474 +0xe0b
reflect.Value.Call(0x2a0920, 0x2f5450, 0x130, 0x18fbee8, 0x3, ...)
	/Users/mitchellh/go/src/pkg/reflect/value.go:345 +0x9d
net/rpc.(*service).call(0xc2103f0dc0, 0xc2103f0d00, 0xc2103fc8e0, 0xc210158180, 0xc2105281a0, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:381 +0x159
created by net/rpc.(*Server).ServeCodec
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:452 +0x3bb

goroutine 3194 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·002()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:161 +0x3b
created by github.com/mitchellh/packer/packer/rpc.(*CommunicatorServer).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:165 +0x115

goroutine 3201 [semacquire]:
sync.runtime_Syncsemacquire(0xc21052bbb8)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21052bba8)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).write(0xc21052bb40, 0xc21093e350, 0x2, 0x2, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:94 +0x1fe
io.(*PipeWriter).Write(0xc210a08d88, 0xc21093e350, 0x2, 0x2, 0x2, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:161 +0x5f
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:517 +0x9f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 3206 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 3202 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 3212 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 3211 [semacquire]:
sync.runtime_Syncsemacquire(0xc210194940)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc210194930)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210194900, 0xc210be5000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2109a6c40, 0xc210be5000, 0x1000, 0x1000, 0x133d8, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210bbb060, 0xc210be5000, 0x1000, 0x1000, 0x68b820, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc2101dbf00)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc2101dbf00, 0xc21010d520, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc2101dbf00, 0xc21010d520, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc2101dbf00, 0xc21010d520, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc2101dbf00, 0xc21010d520, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2102af1e0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2102af1e0, 0xc2101b0d00, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2102af1e0, 0x22f1a0, 0xc2101b0d20, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2102af1e0, 0x22f1a0, 0xc2101b0d20, 0x7a2d50, 0xc210bbb060)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
github.com/mitchellh/packer/packer/rpc.func·001()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:91 +0x23a
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:100 +0x2f3

goroutine 3210 [semacquire]:
sync.runtime_Syncsemacquire(0xc210194880)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc210194870)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210194840, 0xc210bdd000, 0x8000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2109a6c20, 0xc210bdd000, 0x8000, 0x8000, 0x8000, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210bbb000, 0xc210bdd000, 0x8000, 0x8000, 0x8000, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
io.Copy(0x7a2d28, 0xc210a045a0, 0x7a2d50, 0xc210bbb000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
github.com/mitchellh/packer/packer/rpc.serveSingleCopy(0x333540, 0x6, 0xc210192150, 0xc200000008, 0x7a2d28, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:273 +0x1f9
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:73 +0x273

goroutine 3215 [chan receive]:
github.com/mitchellh/packer/packer.(*RemoteCmd).Wait(0xc210a04480)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/communicator.go:180 +0x98
github.com/mitchellh/packer/packer/rpc.func·003()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:221 +0x95
created by github.com/mitchellh/packer/packer/rpc.(*CommunicatorServer).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:224 +0x9f5

goroutine 3209 [semacquire]:
sync.runtime_Syncsemacquire(0xc2101947c0)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc2101947b0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc210194780, 0xc210bd5000, 0x8000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc2109a6c00, 0xc210bd5000, 0x8000, 0x8000, 0x2, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc21098ff60, 0xc210bd5000, 0x8000, 0x8000, 0x2, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
io.Copy(0x7a2d28, 0xc210a04540, 0x7a2d50, 0xc21098ff60, 0x8f68f1, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
github.com/mitchellh/packer/packer/rpc.serveSingleCopy(0x333580, 0x6, 0xc210192150, 0xc200000007, 0x7a2d28, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:273 +0x1f9
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:68 +0x1d8

goroutine 3199 [semacquire]:
sync.runtime_Syncsemacquire(0xc21052bc40)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21052bc30)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21052bc00, 0xc210b33000, 0x8000, 0x8000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210a08da0, 0xc210b33000, 0x8000, 0x8000, 0x8000, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210a04360, 0xc210b33000, 0x8000, 0x8000, 0x8000, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
io.Copy(0x7a2d28, 0xc21098fe40, 0x7a2d50, 0xc210a04360, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:352 +0x1c8
github.com/mitchellh/packer/packer/rpc.serveSingleCopy(0x333540, 0x6, 0xc2100452a0, 0xc200000011, 0x7a2d28, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:273 +0x1f9
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:73 +0x273

goroutine 3207 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 3213 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 3214 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 3205 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·002()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:161 +0x3b
created by github.com/mitchellh/packer/packer/rpc.(*CommunicatorServer).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:165 +0x115

goroutine 3216 [chan receive]:
github.com/mitchellh/packer/packer.(*RemoteCmd).Wait(0xc21098fd20)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/communicator.go:180 +0x98
github.com/mitchellh/packer/packer/rpc.func·003()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:221 +0x95
created by github.com/mitchellh/packer/packer/rpc.(*CommunicatorServer).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:224 +0x9f5

goroutine 373779 [select]:
github.com/mitchellh/packer/packer.(*BasicUi).Ask(0xc21006ac60, 0xc210824cb0, 0x66, 0x0, 0x0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/ui.go:196 +0x6cb
github.com/mitchellh/packer/packer/rpc.(*UiServer).Ask(0xc21009e6b0, 0xc210824cb0, 0x66, 0xc210940400, 0x0, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/ui.go:63 +0x55
reflect.Value.call(0x2a0920, 0x2f5450, 0x130, 0x327b40, 0x4, ...)
	/Users/mitchellh/go/src/pkg/reflect/value.go:474 +0xe0b
reflect.Value.Call(0x2a0920, 0x2f5450, 0x130, 0x1c17ee8, 0x3, ...)
	/Users/mitchellh/go/src/pkg/reflect/value.go:345 +0x9d
net/rpc.(*service).call(0xc210354480, 0xc210354440, 0xc210000b18, 0xc210069e00, 0xc21009cb80, ...)
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:381 +0x159
created by net/rpc.(*Server).ServeCodec
	/Users/mitchellh/go/src/pkg/net/rpc/server.go:452 +0x3bb

goroutine 3203 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 3208 [chan receive]:
github.com/mitchellh/packer/packer/rpc.func·005()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:510 +0x5f
created by github.com/mitchellh/packer/packer/rpc.newStream
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:521 +0x169

goroutine 3200 [semacquire]:
sync.runtime_Syncsemacquire(0xc21052bd00)
	/Users/mitchellh/go/src/pkg/runtime/sema.goc:257 +0xca
sync.(*Cond).Wait(0xc21052bcf0)
	/Users/mitchellh/go/src/pkg/sync/cond.go:62 +0x89
io.(*pipe).read(0xc21052bcc0, 0xc210b3b000, 0x1000, 0x1000, 0x0, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:52 +0x245
io.(*PipeReader).Read(0xc210a08dc0, 0xc210b3b000, 0x1000, 0x1000, 0x133d8, ...)
	/Users/mitchellh/go/src/pkg/io/pipe.go:134 +0x5f
github.com/mitchellh/packer/packer/rpc.(*Stream).Read(0xc210a043c0, 0xc210b3b000, 0x1000, 0x1000, 0x68b820, ...)
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/muxconn.go:545 +0x53
bufio.(*Reader).fill(0xc210a04420)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:91 +0x110
bufio.(*Reader).Read(0xc210a04420, 0xc210a05340, 0x1, 0x9, 0x1, ...)
	/Users/mitchellh/go/src/pkg/bufio/bufio.go:159 +0x1a4
io.ReadAtLeast(0x7a2da0, 0xc210a04420, 0xc210a05340, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a2da0, 0xc210a04420, 0xc210a05340, 0x1, 0x9, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
encoding/gob.decodeUintReader(0x7a2da0, 0xc210a04420, 0xc210a05340, 0x9, 0x9, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decode.go:66 +0x98
encoding/gob.(*Decoder).recvMessage(0xc2108dc2d0, 0x0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:73 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc2108dc2d0, 0xc210a08e00, 0x160)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:159 +0x49
encoding/gob.(*Decoder).DecodeValue(0xc2108dc2d0, 0x22f1a0, 0xc210a08e98, 0x160, 0x0, ...)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:223 +0x12e
encoding/gob.(*Decoder).Decode(0xc2108dc2d0, 0x22f1a0, 0xc210a08e98, 0x7a2d50, 0xc210a043c0)
	/Users/mitchellh/go/src/pkg/encoding/gob/decoder.go:202 +0x1c5
github.com/mitchellh/packer/packer/rpc.func·001()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:91 +0x23a
created by github.com/mitchellh/packer/packer/rpc.(*communicator).Start
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/rpc/communicator.go:100 +0x2f3

goroutine 373780 [syscall]:
syscall.Syscall(0x3, 0x3, 0xc210e2efb0, 0x1, 0x0, ...)
	/Users/mitchellh/go/src/pkg/syscall/asm_darwin_amd64.s:17 +0x5
syscall.read(0x3, 0xc210e2efb0, 0x1, 0x4, 0xbbad410200000056, ...)
	/Users/mitchellh/go/src/pkg/syscall/zsyscall_darwin_amd64.go:900 +0x72
syscall.Read(0x3, 0xc210e2efb0, 0x1, 0x4, 0x4, ...)
	/Users/mitchellh/go/src/pkg/syscall/syscall_unix.go:135 +0x5c
os.(*File).read(0xc2100003b8, 0xc210e2efb0, 0x1, 0x4, 0xb5cc5, ...)
	/Users/mitchellh/go/src/pkg/os/file_unix.go:180 +0x62
os.(*File).Read(0xc2100003b8, 0xc210e2efb0, 0x1, 0x4, 0x80000000000, ...)
	/Users/mitchellh/go/src/pkg/os/file.go:95 +0x98
io.ReadAtLeast(0x7a1568, 0xc2100003b8, 0xc210e2efb0, 0x1, 0x4, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:288 +0xf6
io.ReadFull(0x7a1568, 0xc2100003b8, 0xc210e2efb0, 0x1, 0x4, ...)
	/Users/mitchellh/go/src/pkg/io/io.go:306 +0x71
fmt.(*readRune).readByte(0xc210e2ef90, 0xc2100452f8, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/fmt/scan.go:341 +0x164
fmt.(*readRune).ReadRune(0xc210e2ef90, 0x0, 0x0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/fmt/scan.go:357 +0x61
fmt.(*ss).ReadRune(0xc210466780, 0x0, 0x0, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/fmt/scan.go:200 +0xd7
fmt.(*ss).getRune(0xc210466780, 0x8)
	/Users/mitchellh/go/src/pkg/fmt/scan.go:220 +0x27
fmt.(*ss).skipSpace(0xc210466780, 0x0)
	/Users/mitchellh/go/src/pkg/fmt/scan.go:436 +0x27
fmt.(*ss).convertString(0xc210466780, 0x76, 0x0, 0x0)
	/Users/mitchellh/go/src/pkg/fmt/scan.go:821 +0xa8
fmt.(*ss).scanOne(0xc210466780, 0xc200000076, 0x2314e0, 0xc210940440)
	/Users/mitchellh/go/src/pkg/fmt/scan.go:986 +0xfbc
fmt.(*ss).doScan(0xc210466780, 0x1cbbf60, 0x1, 0x1, 0x0, ...)
	/Users/mitchellh/go/src/pkg/fmt/scan.go:1047 +0xb2
fmt.Fscanln(0x7a1568, 0xc2100003b8, 0x1cbbf60, 0x1, 0x1, ...)
	/Users/mitchellh/go/src/pkg/fmt/scan.go:134 +0xac
github.com/mitchellh/packer/packer.func·017()
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/ui.go:189 +0xd7
created by github.com/mitchellh/packer/packer.(*BasicUi).Ask
	/Users/mitchellh/code/go/src/github.com/mitchellh/packer/packer/ui.go:194 +0x4f9



!!!!!!!!!!!!!!!!!!!!!!!!!!! PACKER CRASH !!!!!!!!!!!!!!!!!!!!!!!!!!!!

Packer crashed! This is always indicative of a bug within Packer.
A crash log has been placed at "crash.log" relative to your current
working directory. It would be immensely helpful if you could please
report the crash with Packer[1] so that we can fix this.

[1]: https://github.com/mitchellh/packer/issues

!!!!!!!!!!!!!!!!!!!!!!!!!!! PACKER CRASH !!!!!!!!!!!!!!!!!!!!!!!!!!!!