Rollup of 6 pull requests

[Dylan-DPC-zz]

Successful merges:

• Updating str.chars docs to mention crates.io. #68495 (Updating str.chars docs to mention crates.io.)
• Improve #Safety of various methods in core::ptr #68701 (Improve #Safety of various methods in core::ptr)
• macOS: avoid calling pthread_self() twice #68767 (macOS: avoid calling pthread_self() twice)
• [tiny] parser: macro_rules is a weak keyword #69186 ([tiny] parser: macro_rules is a weak keyword)
• Clean up E0309 explanation #69188 (Clean up E0309 explanation)
• debug_assert a few more raw pointer methods #69208 (debug_assert a few more raw pointer methods)

Failed merges:

r? @ghost

[Dylan-DPC-zz]

@bors r+ rollup=never p=6

[bors]

📌 Commit b0052c4 has been approved by Dylan-DPC

[bors]

⌛ Testing commit b0052c4 with merge 942ea9628bd6a99d0034937a62bd3f4da07402e0...

[rust-highfive]

The job x86_64-gnu of 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.

2020-02-17T03:22:50.5983168Z 
2020-02-17T03:22:50.5983346Z ------------------------------------------
2020-02-17T03:22:50.5983417Z stderr:
2020-02-17T03:22:50.5983593Z ------------------------------------------
2020-02-17T03:22:50.5983889Z thread 'main' panicked at 'used 976 bytes of stack, but `struct Big` is only 384 bytes', /checkout/src/test/ui/issues/issue-40883.rs:83:9
2020-02-17T03:22:50.5984041Z 
2020-02-17T03:22:50.5984232Z ------------------------------------------
2020-02-17T03:22:50.5984287Z 
2020-02-17T03:22:50.5984315Z 
---
2020-02-17T03:22:50.5995073Z thread 'main' panicked at 'Some tests failed', src/tools/compiletest/src/main.rs:348:22
2020-02-17T03:22:50.5995223Z note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
2020-02-17T03:22:50.6003719Z 
2020-02-17T03:22:50.6003784Z 
2020-02-17T03:22:50.6005382Z command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--src-base" "/checkout/src/test/ui" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--mode" "ui" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/checkout/obj/build/x86_64-unknown-linux-gnu/llvm/build/bin/FileCheck" "--host-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python2.7" "--lldb-python" "/usr/bin/python2.7" "--gdb" "/usr/bin/gdb" "--llvm-version" "9.0.1-rust-1.43.0-nightly\n" "--cc" "" "--cxx" "" "--cflags" "" "--llvm-components" "" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"
2020-02-17T03:22:50.6006051Z 
2020-02-17T03:22:50.6006083Z 
2020-02-17T03:22:50.6014190Z failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test
2020-02-17T03:22:50.6014308Z Build completed unsuccessfully in 1:26:59
2020-02-17T03:22:50.6014308Z Build completed unsuccessfully in 1:26:59
2020-02-17T03:22:50.6060681Z == clock drift check ==
2020-02-17T03:22:50.6079685Z   local time: Mon Feb 17 03:22:50 UTC 2020
2020-02-17T03:22:50.7883541Z   network time: Mon, 17 Feb 2020 03:22:50 GMT
2020-02-17T03:22:50.7884671Z == end clock drift check ==
2020-02-17T03:22:51.1702915Z 
2020-02-17T03:22:51.1785889Z ##[error]Bash exited with code '1'.
2020-02-17T03:22:51.1837244Z ##[section]Starting: Checkout rust-lang/rust@auto to s
2020-02-17T03:22:51.1838885Z ==============================================================================
2020-02-17T03:22:51.1838971Z Task         : Get sources
2020-02-17T03:22:51.1839035Z 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

[JohnTitor]

Uhmm, this failure has been shown three times, closing.