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Rollup of 5 pull requests#71445

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bors merged 19 commits intorust-lang:masterrust-lang/rust:masterfrom

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Apr 23, 2020

Commits

Commits on Apr 17, 2020

• Lint must_use on mem::replace

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  cuviper

  committed
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• Fix unused results from mem::replace

  cuviper

  committed
  ccecae5

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Commits on Apr 20, 2020

• allow(unused_must_use) in issue-23611-enum-swap-in-drop.rs

  cuviper

  committed
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Commits on Apr 21, 2020

• allow wasm32 compilation of librustc_data_structures/profiling.rs

  ctaggart

  committed
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• ./x.py fmt

  ctaggart

  committed
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• use cfg_if! and use FileSerializationSink for wasi

  ctaggart

  committed
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• proc_macro::is_available()

  dtolnay

  committed
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• accept cfg_if suggestion

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  ctaggart

  and

  bjorn3

  authored
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Commits on Apr 22, 2020

• Add checks to ensure that explanations have code examples using the error code and also that 'compile_fail' isn't mispelled

  GuillaumeGomez

  committed
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• Fix new tidy checks

  GuillaumeGomez

  committed
  5cdea2d

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• suggested rearrangement of the cfg if statements

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  ctaggart

  and

  ecstatic-morse

  authored
  02241db

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• remove some extra }

  ctaggart

  committed
  51b194f

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• Add tracking issue for proc_macro_is_available

  dtolnay

  committed
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• Make `AllocErr` copyable

  TimDiekmann

  committed
  863d2d9

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• Rollup merge of #71256 - cuviper:must_use_replace, r=estebank

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  Dylan-DPC

  authored
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• Rollup merge of #71350 - GuillaumeGomez:error-code-explanation-extra-check, r=oli-obk

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  Dylan-DPC

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• Rollup merge of #71369 - ctaggart:wasm32_profiling, r=ecstatic-morse

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  Dylan-DPC

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  16be619

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• Rollup merge of #71400 - dtolnay:isavailable, r=petrochenkov

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  Dylan-DPC

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• Rollup merge of #71440 - TimDiekmann:copy-allocerr, r=Amanieu

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  Dylan-DPC

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