Auto merge of #4248 - dethoter:issue-4228, r=alexcrichton
authorbors <bors@rust-lang.org>
Wed, 5 Jul 2017 14:19:07 +0000 (14:19 +0000)
committerbors <bors@rust-lang.org>
Wed, 5 Jul 2017 14:19:07 +0000 (14:19 +0000)
bench command supports --no-fail-fast flag.

Fix for #4228.


Trivial merge