/usr/share/gocode/src/ is in golang-github-juju-ansiterm-dev 0.0~git20161107.35c59b9-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gocode/src/github.com/
/usr/share/gocode/src/github.com/juju/
/usr/share/gocode/src/github.com/juju/ansiterm/
/usr/share/gocode/src/github.com/juju/ansiterm/attribute.go
/usr/share/gocode/src/github.com/juju/ansiterm/attribute_test.go
/usr/share/gocode/src/github.com/juju/ansiterm/color.go
/usr/share/gocode/src/github.com/juju/ansiterm/color_test.go
/usr/share/gocode/src/github.com/juju/ansiterm/context.go
/usr/share/gocode/src/github.com/juju/ansiterm/context_test.go
/usr/share/gocode/src/github.com/juju/ansiterm/doc.go
/usr/share/gocode/src/github.com/juju/ansiterm/package_test.go
/usr/share/gocode/src/github.com/juju/ansiterm/style.go
/usr/share/gocode/src/github.com/juju/ansiterm/style_test.go
/usr/share/gocode/src/github.com/juju/ansiterm/tabwriter/
/usr/share/gocode/src/github.com/juju/ansiterm/tabwriter.go
/usr/share/gocode/src/github.com/juju/ansiterm/tabwriter/tabwriter.go
/usr/share/gocode/src/github.com/juju/ansiterm/tabwriter/tabwriter_test.go
/usr/share/gocode/src/github.com/juju/ansiterm/terminal.go
/usr/share/gocode/src/github.com/juju/ansiterm/writer.go
/usr/share/gocode/src/github.com/juju/ansiterm/writer_test.go