Auto merge of #3964 - alexcrichton:update-deps, r=alexcrichton
authorbors <bors@rust-lang.org>
Thu, 27 Apr 2017 19:22:49 +0000 (19:22 +0000)
committerbors <bors@rust-lang.org>
Thu, 27 Apr 2017 19:22:49 +0000 (19:22 +0000)
Update dependencies Cargo uses

Namely update to serde 1.0.0!


Trivial merge