/usr/share/gocode/src/github.com/ is in golang-github-docker-go-metrics-dev 0.0~git20161110.0.0f35294-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gocode/src/github.com/docker/
/usr/share/gocode/src/github.com/docker/go-metrics/
/usr/share/gocode/src/github.com/docker/go-metrics/counter.go
/usr/share/gocode/src/github.com/docker/go-metrics/docs.go
/usr/share/gocode/src/github.com/docker/go-metrics/gauge.go
/usr/share/gocode/src/github.com/docker/go-metrics/handler.go
/usr/share/gocode/src/github.com/docker/go-metrics/helpers.go
/usr/share/gocode/src/github.com/docker/go-metrics/namespace.go
/usr/share/gocode/src/github.com/docker/go-metrics/register.go
/usr/share/gocode/src/github.com/docker/go-metrics/timer.go
/usr/share/gocode/src/github.com/docker/go-metrics/unit.go