fix build (missing files) and upgrade stack resolver
Just autoformatting code isnt worth a PR, I can very easily do that myself.
This took me a while to figure out. The original symptom I saw was that
registering UnixStream::pair() streams fails with "Bad file descriptor".
Updated Nov 9
Run rustfmt and put back unused `env_logger::init` call
Before, Registry::register() on a UnixListener would return
Calling sys::UnixListener::register() instead of sys::Uni…