tmm1/perftools.rb — pull request #50 by betelgeuse (2012-11-12 21:02:56+00:00)
Title: Swap to the debugger-ruby_core_source gem

The ruby_source_gem is not maintained so swap to a maintained fork. As
an added bonus the work does not download files off the internet. This fixed #41 for me but the root cause of why it got stuck building should still be fixed so the similar problems won't trigger the issue again in the future.