docopt/docopt.rs — pull request #29 by renato-zannon (2014-10-17 19:22:27+00:00)
Title: Remove reference to libdebug

libdebug is gone from rust-nightly, so the `extern crate` statement breaks the build.

Since there were no uses of libdebug (at least, everything compiled and the tests passed), removing the statement was enough to fix the build.