Rollup of 8 pull requests

[Centril]

Successful merges:

• bump rand in libcore/liballoc test suites #63261 (bump rand in libcore/liballoc test suites)
• Update rustfmt to 1.4.4 #63316 (Update rustfmt to 1.4.4)
• Add an overflow check in truncate implementation for Unix. #63332 (Add an overflow check in truncate implementation for Unix.)
• Don't use remap-path-prefix in dep-info files. #63342 (Don't use remap-path-prefix in dep-info files.)
• doc: Fix typo in float from bytes methods #63366 (doc: Fix typo in float from bytes methods)
• Fix ICE #63364 #63370 (Fix ICE ICE when iterating over a u16 range whose bounds exceed 64k #63364)
• Improved documentation for compile_error!() #63377 (Improved documentation for compile_error!())
• Add test for issue 53096 #63379 (Add test for issue 53096)

Failed merges:

r? @ghost

[Centril]

@bors r+ p=8 rollup=never

[bors]

📌 Commit 3de450b has been approved by Centril

[bors]

⌛ Testing commit 3de450b with merge c215a1de6ce23d152a8303b6c95f63d420eaffea...

[rust-highfive]

Your PR failed (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

2019-08-08T17:14:05.6220111Z do so (now or later) by using -b with the checkout command again. Example:
2019-08-08T17:14:05.6221655Z 
2019-08-08T17:14:05.6222427Z   git checkout -b <new-branch-name>
2019-08-08T17:14:05.6222725Z 
2019-08-08T17:14:05.6223313Z HEAD is now at c215a1de6 Auto merge of #63380 - Centril:rollup-tzfhtnu, r=Centril
2019-08-08T17:14:05.6408039Z ##[section]Starting: Collect CPU-usage statistics in the background
2019-08-08T17:14:05.6421288Z ==============================================================================
2019-08-08T17:14:05.6421383Z Task         : Bash
2019-08-08T17:14:05.6421470Z Description  : Run a Bash script on macOS, Linux, or Windows
---
2019-08-08T17:15:13.5156339Z Script contents:
2019-08-08T17:15:13.5156852Z aws s3 cp --acl public-read cpu-usage.csv s3://$DEPLOY_BUCKET/rustc-builds/$BUILD_SOURCEVERSION/cpu-$SYSTEM_JOBNAME.csv
2019-08-08T17:15:13.5157247Z ========================== Starting Command Output ===========================
2019-08-08T17:15:13.5159713Z [command]/bin/bash --noprofile --norc /home/vsts/work/_temp/c9d1048b-2c14-4c99-b9da-00cf5d3c808d.sh
2019-08-08T17:15:13.5160147Z /home/vsts/work/_temp/c9d1048b-2c14-4c99-b9da-00cf5d3c808d.sh: line 1: aws: command not found
2019-08-08T17:15:13.5161196Z ##[error]Bash exited with code '127'.
2019-08-08T17:15:13.5176300Z ##[section]Starting: Checkout
2019-08-08T17:15:13.5178363Z ==============================================================================
2019-08-08T17:15:13.5178516Z Task         : Get sources
2019-08-08T17:15:13.5178649Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

[bors]

💔 Test failed - checks-azure

[Centril]

@bors retry spurious network.

[bors]

⌛ Testing commit 3de450b with merge 2d1a551...

[bors]

☀️ Test successful - checks-azure
Approved by: Centril
Pushing 2d1a551 to master...