From: bors <bors@rust-lang.org>
Date: Sat, 5 May 2018 17:19:01 +0000 (+0000)
Subject: Auto merge of #5487 - matklad:mixed-deps, r=alexcrhiton
X-Git-Tag: archive/raspbian/0.35.0-2+rpi1~3^2^2^2^2^2^2^2~22^2~1^2~11
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Auto merge of #5487 - matklad:mixed-deps, r=alexcrhiton

FIx false positive warning

We warn if a feature was specified corresponding to a dependency which
is not optional. However, a dependency can be both optional and
required, and we shouldn't warn in that case.

cc https://github.com/rust-lang/cargo/pull/5480

r? @alexcrichton
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07c0784642621f50a77c5ba9dbd39c4a3f3699e4