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authorbors <bors@rust-lang.org>2017-08-27 10:02:51 +0000
committerbors <bors@rust-lang.org>2017-08-27 10:02:51 +0000
commit78e95bb7ac92f8f92654705a47cef652b6a0b259 (patch)
treea0d4ee18cfe588ccfc8ad76f5b91b70a03d1da30 /src/libstd/sys/unix/process/process_unix.rs
parent93cdf5e3c45a0578c79afe8563065d07e5f6984f (diff)
parenta91bdf4ad558b3cf7b2a0230df15d83a6a686397 (diff)
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Auto merge of #42588 - ishitatsuyuki:patch-1, r=petrochenkov
Make unused-extern-crate warn-by-default

Apart from enabling the lint, this pull request also removes existing unused crates in the codebase, and fix some amount of false positives on crates with special purposes.

Now that all false positive issues are closed, it should be possible to make it available to wider users.

Quote:
> Now that macro modularization is implemented, this is true today! *https://github.com/rust-lang/rust/issues/30849#issuecomment-286573218*

Concerns: can break some `#[deny(warnings)]`.

Close #42591
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