error message

GOROOT=/usr/local/go
GOPATH=/home/shiywang/go
/usr/local/go/bin/go test -c -o "/tmp/TestPodAndContainerAttach in attach_test.gogo" k8s.io/kubernetes/pkg/kubectl/cmd
"/tmp/TestPodAndContainerAttach in attach_test.gogo" -test.v -test.run ^TestPodAndContainerAttach$
panic: expected pointer, but got invalid kind [recovered]
	panic: expected pointer, but got invalid kind

goroutine 11 [running]:
panic(0x182bcc0, 0xc4204ac360)
	/usr/local/go/src/runtime/panic.go:500 +0x1a1
testing.tRunner.func1(0xc4205a1140)
	/usr/local/go/src/testing/testing.go:579 +0x25d
panic(0x182bcc0, 0xc4204ac360)
	/usr/local/go/src/runtime/panic.go:458 +0x243
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/runtime.EncodeOrDie(0x7f00da9b63d8, 0xc420023710, 0x0, 0x0, 0xc420023710, 0x4e33b9)
	/home/shiywang/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/runtime/codec.go:74 +0xce
k8s.io/kubernetes/pkg/kubectl/cmd.objBody(0x26c6e40, 0xc420023710, 0x0, 0x0, 0x0, 0x0)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/cmd/cmd_test.go:112 +0x77
k8s.io/kubernetes/pkg/kubectl/cmd.TestPodAndContainerAttach.func1(0xc4201a1b30, 0x0, 0x0, 0xc4205cecd8)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/cmd/attach_test.go:130 +0x79
k8s.io/kubernetes/vendor/k8s.io/client-go/rest/fake.roundTripperFunc.RoundTrip(0xc4203d9c80, 0xc4201a1b30, 0xc4203d9c80, 0x0, 0x0)
	/home/shiywang/go/src/k8s.io/kubernetes/vendor/k8s.io/client-go/rest/fake/fake.go:42 +0x30
net/http.send(0xc4201a1b30, 0x26c39c0, 0xc4203d9c80, 0x0, 0x0, 0x0, 0x8, 0xc4205ced08, 0xc42009c060)
	/usr/local/go/src/net/http/client.go:256 +0x15f
net/http.(*Client).send(0xc4203ccc60, 0xc4201a1b30, 0x0, 0x0, 0x0, 0xc42009c060, 0x0, 0x1)
	/usr/local/go/src/net/http/client.go:146 +0x102
net/http.(*Client).doFollowingRedirects(0xc4203ccc60, 0xc4201a1b30, 0x1b63050, 0x3, 0x1, 0x0)
	/usr/local/go/src/net/http/client.go:528 +0x5e5
net/http.(*Client).Do(0xc4203ccc60, 0xc4201a1b30, 0xc4205ceef0, 0x7e50cb, 0x0)
	/usr/local/go/src/net/http/client.go:184 +0x1ea
k8s.io/kubernetes/vendor/k8s.io/client-go/rest/fake.(*RESTClient).Do(0xc42009fef0, 0xc4201a1b30, 0x0, 0x24, 0x0)
	/home/shiywang/go/src/k8s.io/kubernetes/vendor/k8s.io/client-go/rest/fake/fake.go:122 +0x64
k8s.io/kubernetes/vendor/k8s.io/client-go/rest.(*Request).request(0xc42027b200, 0xc4205cf038, 0x0, 0x0)
	/home/shiywang/go/src/k8s.io/kubernetes/vendor/k8s.io/client-go/rest/request.go:821 +0x274
k8s.io/kubernetes/vendor/k8s.io/client-go/rest.(*Request).Do(0xc42027b200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/home/shiywang/go/src/k8s.io/kubernetes/vendor/k8s.io/client-go/rest/request.go:895 +0xb7
k8s.io/kubernetes/pkg/kubectl/resource.(*Helper).Get(0xc42000d140, 0x1a4701a, 0x4, 0x1a462fc, 0x3, 0x1a45d00, 0x2, 0x7f00da9b6360, 0xc42009fef0, 0xc4204ac190)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/resource/helper.go:61 +0xf3
k8s.io/kubernetes/pkg/kubectl/resource.(*Info).Get(0xc42041bc80, 0x4, 0x1a4701a)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:117 +0x9a
k8s.io/kubernetes/pkg/kubectl/resource.RetrieveLazy(0xc42041bc80, 0x0, 0x0, 0x0, 0x0)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:646 +0x42
k8s.io/kubernetes/pkg/kubectl/resource.DecoratedVisitor.Visit.func1(0xc42041bc80, 0x0, 0x0, 0x38, 0xc42000d080)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:320 +0x91
k8s.io/kubernetes/pkg/kubectl/resource.(*Info).Visit(0xc42041bc80, 0xc42000d080, 0x0, 0x1b56c91)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:112 +0x42
k8s.io/kubernetes/pkg/kubectl/resource.VisitorList.Visit(0xc4204ac1d0, 0x1, 0x1, 0xc42000d080, 0xc4204ac201, 0xc42000d080)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:186 +0x5b
k8s.io/kubernetes/pkg/kubectl/resource.(*VisitorList).Visit(0xc4204109a0, 0xc42000d080, 0x10, 0x10)
	<autogenerated>:123 +0x6e
k8s.io/kubernetes/pkg/kubectl/resource.DecoratedVisitor.Visit(0x26c2e00, 0xc4204109a0, 0xc420410a40, 0x3, 0x4, 0xc4204ac200, 0x1, 0xc4204ac200)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:325 +0xd6
k8s.io/kubernetes/pkg/kubectl/resource.(*DecoratedVisitor).Visit(0xc4203785d0, 0xc4204ac200, 0x18e6c20, 0xc4203785d0)
	<autogenerated>:158 +0x78
k8s.io/kubernetes/pkg/kubectl/resource.(*Result).Infos(0xc420492fc0, 0xc4204109a0, 0xc420410a40, 0x3, 0x4, 0xc4205cf628)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/resource/result.go:111 +0xfd
k8s.io/kubernetes/pkg/kubectl/resource.(*Result).Object(0xc420492fc0, 0xc420492fc0, 0x4, 0xc4205cf6e0, 0x1)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/resource/result.go:125 +0x4b
k8s.io/kubernetes/pkg/kubectl/cmd.(*AttachOptions).Complete(0xc4205a15c0, 0x26e0b40, 0xc4203d9c20, 0xc4205cfd38, 0xc4203b9fa0, 0x1, 0x1, 0x26b8e40, 0xc4204ac0f0)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/cmd/attach.go:146 +0x432
k8s.io/kubernetes/pkg/kubectl/cmd.TestPodAndContainerAttach(0xc4205a1140)
	/home/shiywang/go/src/k8s.io/kubernetes/pkg/kubectl/cmd/attach_test.go:138 +0xc10
testing.tRunner(0xc4205a1140, 0x1b5e960)
	/usr/local/go/src/testing/testing.go:610 +0x81
created by testing.(*T).Run
	/usr/local/go/src/testing/testing.go:646 +0x2ec

Process finished with exit code 2