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Rollup of 7 pull requests#71920

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Dylan-DPC-zz wants to merge 18 commits intorust-lang:masterrust-lang/rust:masterfrom Dylan-DPC-zz:rollup-j37hv0xDylan-DPC-zz/rust:rollup-j37hv0xCopy head branch name to clipboard

+216-141

Commits

Commits on Apr 24, 2020

• Introduce BTreeMap benches of iter itself

  ssomers

  committed
  8f5c66c

• Speed up BTreeMap iteration by intertwined descend to the initial leaf edges

  ssomers

  committed
  8730227

Commits on May 1, 2020

• Turn of rustc-dev-guide toolstate for now

  mark-i-m

  committed
  9e43b00

Commits on May 2, 2020

• SipHasher::new() is literally with SipHasher with both keys being 0

  hbina

  committed
  19e5da9

Commits on May 3, 2020

• x.py: Give a more helpful error message if curl isn't installed

  Show description for 9bcf409
  jyn514

  committed
  9bcf409

Commits on May 4, 2020

• expand comment on default mutex behavior

  RalfJung

  committed
  61fdd3e

• explain our rwlock implementation (and fix a potential data race)

  RalfJung

  committed
  40a6b8c

• edit Mutex comment

  RalfJung

  committed
  3f50292

• Add command aliases from Cargo to x.py commands

  mibac138

  committed
  b83853d

Commits on May 5, 2020

• rely on rdlock/wrlock not returning anything but the specified error codes

  RalfJung

  committed
  f9866f9

• backport 1.43.1 release notes

  

  cuviper

  authored and

  pietroalbini

  committed
  3857506

• Rollup merge of rust-lang#71510 - ssomers:btreemap_iter_intertwined, r=Mark-Simulacrum

  Show description for eaee6e3
  Dylan-DPC

  authored
  eaee6e3

• Rollup merge of rust-lang#71727 - hbina:simplified_usage, r=Mark-Simulacrum

  Show description for fb5e9f2
  Dylan-DPC

  authored
  fb5e9f2

• Rollup merge of rust-lang#71731 - mark-i-m:guide-toolstate-off-for-now, r=kennytm

  Show description for 158b2d8
  Dylan-DPC

  authored
  158b2d8

• Rollup merge of rust-lang#71819 - jyn514:check-for-tools, r=Mark-Simulacrum

  Show description for 436042a
  Dylan-DPC

  authored
  436042a

• Rollup merge of rust-lang#71889 - RalfJung:rwlock, r=Amanieu

  Show description for 2253718
  Dylan-DPC

  authored
  2253718

• Rollup merge of rust-lang#71905 - mibac138:x-cmd-alias, r=Mark-Simulacrum

  Show description for d20d71b
  Dylan-DPC

  authored
  d20d71b

• Rollup merge of rust-lang#71914 - pietroalbini:relnotes-1.43.1, r=Mark-Simulacrum

  Show description for ae4757b
  Dylan-DPC

  authored
  ae4757b