$ rbenv install 1.9.3-p0 Downloading http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz... Installing yaml-0.1.4... Installed yaml-0.1.4 to /Users/cjbottaro/.rbenv/versions/1.9.3-p0 Downloading http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p0.tar.gz... Installing ruby-1.9.3-p0... BUILD FAILED Inspect or clean up the working tree at /var/folders/98/83mjk36d4ts49lpbjvbz48f80000gn/T/ruby-build.2