I've been trying to clone /basho/riak into /rtilder/riak for about 20-30 minutes now. At my request, at least one other person I know has successfully cloned the same repo. I am able to clone /basho/riak into /rtilder/riak-turd successfully.
Some weeks ago, I had cloned /basho/riak into /rtilder/riak and then deleted /rtilder/riak since it was just part of a test. I only mention it now because I think it might be related.