RBENV:
- Create file 'fast-require':
install_git 1.9.3-p194-price-fast-require https://github.com/gnprice/ruby fast-require-1.9.3p194 autoconf standard
-
Run
rbenv install /path/to/fast-require
-
Comment lines 60-62 (hide psych warning)
~/.rbenv/versions/fast-require/lib/ruby/1.9.1/yaml.rb
Thanks @gnprice (http://bugs.ruby-lang.org/issues/7158)