Auto merge of #2954 - alexcrichton:panic-abort-plugins, r=brson
authorbors <bors@rust-lang.org>
Sun, 7 Aug 2016 06:35:42 +0000 (23:35 -0700)
committerGitHub <noreply@github.com>
Sun, 7 Aug 2016 06:35:42 +0000 (23:35 -0700)
Fix panic=abort when compiling with plugins

Closes #2738


Trivial merge