From: bors <bors@rust-lang.org>
Date: Sat, 9 Sep 2017 08:13:32 +0000 (+0000)
Subject: Auto merge of #4477 - alexcrichton:fix-out-of-bounds, r=matklad
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Auto merge of #4477 - alexcrichton:fix-out-of-bounds, r=matklad

Use poll instead of select to handle large fds

It may be the case that Cargo's running around with a lot of file descriptors,
and in this case we wouldn't be able to call `select` due to the file
descriptors being too large and not fitting in the bit array. This switches to
what the standard library is currently doing, using `poll`, which doesn't have
this limitations.
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33250c48b4763b01478d780e76206484a1d5b207