If package `github.com/foo/bar` imports a nested package, say, `github.com/foo/bar/baz`, this will break as it will be trying to look for said package in `$GOPA

If package `github.com/foo/bar` imports a nested package, say, `github.com/foo/bar/baz`, this will break as it will be trying to look for said package in `$GOPATH/src/github.com/foo/bar/baz`.