/usr/lib/go-1.6/pkg/include is in golang-1.6-go 1.6.1-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/go-1.6/pkg/../../../share/go-1.6/pkg/include
/usr/lib/go-1.6/pkg/../../../share/go-1.6/pkg/include