Auto merge of #3039 - matklad:test-lockfiles, r=alexcrichton
authorbors <bors@rust-lang.org>
Thu, 25 Aug 2016 17:44:25 +0000 (10:44 -0700)
committerGitHub <noreply@github.com>
Thu, 25 Aug 2016 17:44:25 +0000 (10:44 -0700)
Simplify lockfile tests

Use project builder to create a file and an extension function to read it.


Trivial merge