Support for Ruby 1.9.2 was removed from guard on Sep 17, 2013
Support for Ruby 1.9.2 was removed from guard on Sep 17, 2013

Guard commit:
https://github.com/guard/guard/commit/17f32f8000f8e02e6ad4c3a46f7125582b2f6c4c
glanotte/guard-migrate