The project structure is fighting againts norms. The author should not have src checked in. They should have their package as the root so it is "go get-able" and does not require the user to alter their GOPATH. To ensure that the proper dependency versions are present, they should vendor the dependencies. I would have opened an issue on GitHub for them, but I am not signed in currently. Cheers on releasing a neat tool.

EDIT: got off my mobile and to a laptop and submitted https://github.com/twitchyliquid64/subnet/issues/3.