japaric/rust-by-example — pull request #274 by Manishearth (2014-11-17 06:28:06+00:00)
Title: Rename fail! to panic!

Was changed in https://github.com/rust-lang/rust/pull/17894

(I'm not sure if this builds, but it caused
[this confusion](http://stackoverflow.com/questions/26965066/rust-error-macro-undefined-fail)
so I thought I'd fix it)