Auto merge of #3998 - fantoine:patch-1, r=alexcrichton
authorbors <bors@rust-lang.org>
Mon, 8 May 2017 14:48:01 +0000 (14:48 +0000)
committerbors <bors@rust-lang.org>
Mon, 8 May 2017 14:48:01 +0000 (14:48 +0000)
Ignore malformed manifests on git dependencies

Fix for #3935


Trivial merge