Installing ruby-2.2.1... BUILD FAILED (CentOS release 6.4 (Final) using ruby-build 20130901-461-g7f3cc01) Inspect or clean up the working tree at /tmp/ruby-build.20150315081134.17206 Results logged to /tmp/ruby-build.20150315081134.17206.log Last 10 log lines: make[3]: Leaving directory `/tmp/ruby-build.20150315081134.17206/ruby-2.2.1/ext/fiddle/libffi-3.2.1' linking shared-object fiddle.so /usr/b