Rollup of 4 pull requests

[Dylan-DPC-zz]

Successful merges:

• Add io::Write::write_all_vectored #70612 (Add io::Write::write_all_vectored)
• Clean up E0501 explanation #70690 (Clean up E0501 explanation)
• expose suggestions::InferCtxtExt for clippy #70821 (expose suggestions::InferCtxtExt for clippy)
• Move sanitize-inline-always test to sanitize directory #70859 (Move sanitize-inline-always test to sanitize directory)

Failed merges:

r? @ghost

[rust-highfive]

Your PR failed (pretty log, 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.

2020-04-06T22:35:04.1790806Z ========================== Starting Command Output ===========================
2020-04-06T22:35:04.1793177Z [command]/bin/bash --noprofile --norc /home/vsts/work/_temp/e9c8ff20-88a1-432f-b306-441f76b64397.sh
2020-04-06T22:35:04.1793381Z 
2020-04-06T22:35:04.1799877Z ##[section]Finishing: Disable git automatic line ending conversion
2020-04-06T22:35:04.1818067Z ##[section]Starting: Checkout rust-lang/rust@refs/pull/70864/merge to s
2020-04-06T22:35:04.1821338Z Task         : Get sources
2020-04-06T22:35:04.1821561Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2020-04-06T22:35:04.1821773Z Version      : 1.0.0
2020-04-06T22:35:04.1821918Z Author       : Microsoft
---
2020-04-06T22:35:05.1756274Z ##[command]git remote add origin https://github.com/rust-lang/rust
2020-04-06T22:35:05.1762537Z ##[command]git config gc.auto 0
2020-04-06T22:35:05.1768126Z ##[command]git config --get-all http.https://github.com/rust-lang/rust.extraheader
2020-04-06T22:35:05.1772177Z ##[command]git config --get-all http.proxy
2020-04-06T22:35:05.1780136Z ##[command]git -c http.extraheader="AUTHORIZATION: basic ***" fetch --force --tags --prune --progress --no-recurse-submodules --depth=2 origin +refs/heads/*:refs/remotes/origin/* +refs/pull/70864/merge:refs/remotes/pull/70864/merge
2020-04-06T22:35:05.2254155Z fatal: couldn't find remote ref refs/pull/70864/merge
2020-04-06T22:35:05.2986238Z ##[warning]Git fetch failed with exit code 128, back off 8.419 seconds before retry.
2020-04-06T22:35:13.6839988Z ##[command]git -c http.extraheader="AUTHORIZATION: basic ***" fetch --force --tags --prune --progress --no-recurse-submodules --depth=2 origin +refs/heads/*:refs/remotes/origin/* +refs/pull/70864/merge:refs/remotes/pull/70864/merge
2020-04-06T22:35:14.1185402Z fatal: couldn't find remote ref refs/pull/70864/merge
2020-04-06T22:35:14.1949657Z ##[warning]Git fetch failed with exit code 128, back off 3.602 seconds before retry.
2020-04-06T22:35:17.7490655Z ##[command]git -c http.extraheader="AUTHORIZATION: basic ***" fetch --force --tags --prune --progress --no-recurse-submodules --depth=2 origin +refs/heads/*:refs/remotes/origin/* +refs/pull/70864/merge:refs/remotes/pull/70864/merge
2020-04-06T22:35:18.1890567Z fatal: couldn't find remote ref refs/pull/70864/merge
2020-04-06T22:35:18.2420329Z ##[error]Git fetch failed with exit code: 128
2020-04-06T22:35:18.2435961Z ##[section]Finishing: Checkout rust-lang/rust@refs/pull/70864/merge to s
2020-04-06T22:35:18.2998290Z ##[section]Starting: Checkout rust-lang/rust@refs/pull/70864/merge to s
2020-04-06T22:35:18.3003748Z Task         : Get sources
2020-04-06T22:35:18.3004059Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2020-04-06T22:35:18.3004357Z Version      : 1.0.0
2020-04-06T22:35:18.3004547Z Author       : Microsoft
2020-04-06T22:35:18.3004547Z Author       : Microsoft
2020-04-06T22:35:18.3004854Z Help         : [More Information](https://go.microsoft.com/fwlink/?LinkId=798199)
2020-04-06T22:35:18.3005216Z ==============================================================================
2020-04-06T22:35:18.5878700Z ##[section]Finishing: Checkout rust-lang/rust@refs/pull/70864/merge to s
2020-04-06T22:35:18.5956304Z Cleaning up task key
2020-04-06T22:35:18.5957309Z Start cleaning up orphan processes.
2020-04-06T22:35:18.6078721Z ##[section]Finishing: Finalize Job
2020-04-06T22:35:18.6118611Z ##[section]Finishing: Linux x86_64-gnu-tools

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 @rust-lang/infra. (Feature Requests)