From: Eric Wong Date: 2015-01-01T00:32:50+00:00 Subject: [ruby-core:67269] Re: [ruby-trunk - Bug #10685] [Open] Segfault from keyword rest arg when coercing an object that defines to_hash Thanks for the report, looks like nobu committed a fix as r49088 > This spec appears to cause the segfault mentioned in > http://rubini.us/2014/12/31/matz-s-ruby-developers-don-t-use-rubyspec/ > today. Fwiw, I do run "make test-rubyspec" before I commit, but that's naruse's repo which I guess is different.. Like many projects nowadays, I won't bother contributing to rubyspec because it requires an account on a proprietary service provider. Free Software (e.g. Ruby) needs Free tools: http://mako.cc/writing/hill-free_tools.html