r45c4l@h4ckb0x:~$ gem --version
Invalid gemspec in [/var/lib/gems/1.8/specifications/tilt-1.3.3.gemspec]: invalid date format in specification: "2011-08-25 00:00:00.000000000Z"
Invalid gemspec in [/var/lib/gems/1.8/specifications/sinatra-1.2.7.gemspec]: invalid date format in specification: "2011-10-01 00:00:00.000000000Z"
Invalid gemspec in [/var/lib/gems/1.8/specifications/terminal-table-1.4.4.gemspec]: invalid date format in specification: "2011-11-07 00:00:00.000000000Z"
1.7.2
r45c4l@h4ckb0x:~$ ruby -v
ruby 1.9.2dev (2010-07-02) [i486-linux]