auto merge of #654 : ebfe/cargo/cargo-build-help, r=alexcrichton
authorbors <bors@rust-lang.org>
Thu, 2 Oct 2014 19:50:46 +0000 (19:50 +0000)
committerbors <bors@rust-lang.org>
Thu, 2 Oct 2014 19:50:46 +0000 (19:50 +0000)

Trivial merge