Jorge Aparicio af00bd1198 bump rustc-cfg dependency to v0.3.0 ... the older no longer works with recent nightlies as target_family disappeared from `rustc --print cfg`'s output		2016-12-30 21:56:29 -05:00
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compiler-builtins	bump rustc-cfg dependency to v0.3.0	2016-12-30 21:56:29 -05:00