NSQ uses `godep` to manage pinned *external* dependencies, but it still needs its own source tree in a properly structured `GOPATH` (and `buildpath` by default isn't properly structured, i.e. `./src/github.com/bitly/nsq`, the import path that's used).

Typically you wouldn't checkout the NSQ repo somewhere outside of your `GOPATH`, so I have to move things around within `buildpath`.