auto merge of #241 : alexcrichton/cargo/fix, r=wycats
authorbors <bors@rust-lang.org>
Tue, 22 Jul 2014 16:11:07 +0000 (16:11 +0000)
committerbors <bors@rust-lang.org>
Tue, 22 Jul 2014 16:11:07 +0000 (16:11 +0000)
If a build was canceled halfway-through, this would lead to problems when the
project was rebuilt again.


Trivial merge