Auto merge of #4340 - debris:fixed_4310, r=alexcrichton
authorbors <bors@rust-lang.org>
Sun, 30 Jul 2017 17:51:50 +0000 (17:51 +0000)
committerbors <bors@rust-lang.org>
Sun, 30 Jul 2017 17:51:50 +0000 (17:51 +0000)
Fixed #4310, print useful message when dependency contains a malformed Cargo.toml

fixed #4310


Trivial merge