GO error when building Dockerfile

[moritzraho]

I get this error when running make docker

go get github.com/tools/godep
godep: [WARNING]: godep should only be used inside a valid go package directory and
godep: [WARNING]: may not function correctly. You are probably outside of your $GOPATH.
godep: [WARNING]:	Current Directory: /tmp/go
godep: [WARNING]:	$GOPATH: /tmp/go/vendor:/tmp/go-src
godep: WARNING: Godep workspaces (./Godeps/_workspace) are deprecated and support for them will be removed when go1.8 is released.
godep: WARNING: Go version (go1.11) & $GO15VENDOREXPERIMENT= wants to enable the vendor experiment, but disabling because a Godep workspace (Godeps/_workspace) exists
# _/tmp/go
/usr/lib/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1
/tmp/go-link-977644414/go.o:(.data+0x8): undefined reference to `x_cgo_callers'
/tmp/go-link-977644414/go.o:(.data+0x10): undefined reference to `x_cgo_init'
/tmp/go-link-977644414/go.o:(.data+0x18): undefined reference to `x_cgo_mmap'
/tmp/go-link-977644414/go.o:(.data+0x20): undefined reference to `x_cgo_munmap'
/tmp/go-link-977644414/go.o:(.data+0x28): undefined reference to `x_cgo_notify_runtime_init_done'
/tmp/go-link-977644414/go.o:(.data+0x30): undefined reference to `x_cgo_sigaction'
/tmp/go-link-977644414/go.o:(.data+0x38): undefined reference to `x_cgo_thread_start'
/tmp/go-link-977644414/go.o:(.data+0x160): undefined reference to `x_cgo_setenv'
/tmp/go-link-977644414/go.o:(.data+0x168): undefined reference to `x_cgo_unsetenv'
/tmp/go-link-977644414/go.o:(.data+0x170): undefined reference to `_cgo_yield'
collect2: error: ld returned 1 exit status

godep: go exit status 2

[moritzraho]

Fixed in #74