[pkg-go] Bug#804469: gosu: FTBFS: cannot find package "github.com/docker/libcontainer/system"

[Chris West (Faux)]

Source: gosu
Version: 1.6-1
Severity: serious
Justification: fails to build from source
Tags: sid 
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs
X-Debbugs-CC: reproducible-builds at lists.alioth.debian.org

Dear Maintainer,

The package fails to build:

dh build --buildsystem=golang --with=golang
   dh_testdir -O--buildsystem=golang
   dh_auto_configure -O--buildsystem=golang
   dh_auto_build -O--buildsystem=golang
	go install -v github.com/tianon/gosu
src/github.com/tianon/gosu/setup-user.go:8:2: cannot find package "github.com/docker/libcontainer/system" in any of:
	/usr/lib/go/src/github.com/docker/libcontainer/system (from $GOROOT)
	/gosu-1.6/obj-x86_64-linux-gnu/src/github.com/docker/libcontainer/system (from $GOPATH)
src/github.com/tianon/gosu/setup-user.go:9:2: cannot find package "github.com/docker/libcontainer/user" in any of:
	/usr/lib/go/src/github.com/docker/libcontainer/user (from $GOROOT)
	/gosu-1.6/obj-x86_64-linux-gnu/src/github.com/docker/libcontainer/user (from $GOPATH)
dh_auto_build: go install -v github.com/tianon/gosu returned exit code 1
debian/rules:14: recipe for target 'build' failed

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/gosu.html

-- System Information:
Debian Release: stretch/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)