Rollup of 16 pull requests

[Centril]

Successful merges:

• Consider references and unions potentially inhabited during privacy-respecting inhabitedness checks #56110 (Consider references and unions potentially inhabited during privacy-respecting inhabitedness checks)
• Use a SmallVec within _match::Matrix. #56269 (Use a SmallVec within _match::Matrix.)
• update miri #56305 (update miri)
• Enable -mergefunc-use-aliases #56358 (Enable -mergefunc-use-aliases)
• Stabilize self_in_typedefs feature #56366 (Stabilize self_in_typedefs feature)
• Refer to the second borrow as the "second borrow" in E0501.rs #56372 (Refer to the second borrow as the "second borrow" in E0501.rs)
• Deal with EINTR in net timeout tests #56394 (Deal with EINTR in net timeout tests)
• Stabilize dbg!(...) #56395 (Stabilize dbg!(...))
• Move VecDeque::resize_with out of the impl<T:Clone> block #56401 (Move VecDeque::resize_with out of the impl<T:Clone> block)
• Improve the unstable book example for #[marker] trait #56402 (Improve the unstable book example for #[marker] trait)
• Update RLS and Rustfmt #56406 (Update RLS and Rustfmt)
• Update tracking issue for extern_crate_self #56412 (Update tracking issue for extern_crate_self)
• Remove unneeded body class selector #56416 (Remove unneeded body class selector)
• Fix failing tidy (line endings on Windows) #56418 (Fix failing tidy (line endings on Windows))
• Remove some uses of try! #56419 (Remove some uses of try!)
• Mention raw-ident syntax #56424 (Mention raw-ident syntax)

Failed merges:

r? @ghost

[Centril]

Included #56406 in this one.

@bors r+ p=10

[bors]

📌 Commit d73a4529d2a00d528a040e9d5be45984324248d8 has been approved by Centril

[bors]

⌛ Testing commit d73a4529d2a00d528a040e9d5be45984324248d8 with merge bac8bd7a58c43fadf2504ca86f17270838ba2584...

[bors]

💔 Test failed - status-travis

[rust-highfive]

The job dist-various-1 of your PR failed on Travis (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.

[00:45:45] warning:  ^
[00:45:58] [RUSTC-TIMING] core test:false 24.473
[00:46:00] LLVM ERROR: Unexpected anonymous function when writing summary
[00:46:00] [RUSTC-TIMING] compiler_builtins test:false 2.402
[00:46:00] The following warnings were emitted during compilation:
[00:46:00] warning: ../../libcompiler_builtins/compiler-rt/lib/builtins/divdc3.c:23:1: warning: conflicting types for built-in function '__divdc3'
[00:46:00] warning:  __divdc3(double __a, double __b, double __c, double __d)
[00:46:00] warning:  ^
[00:46:00] warning: ../../libcompiler_builtins/compiler-rt/lib/builtins/divsc3.c:23:1: warning: conflicting types for built-in function '__divsc3'
---
[00:46:00] 
[00:46:00] error: Could not compile `compiler_builtins`.
[00:46:00] 
[00:46:00] To learn more, run the command again with --verbose.
[00:46:00] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "build" "--target" "thumbv6m-none-eabi" "-j" "4" "--release" "--locked" "--color" "always" "--features" "c mem" "-p" "alloc" "-p" "compiler_builtins" "--manifest-path" "/checkout/src/rustc/compiler_builtins_shim/Cargo.toml" "--message-format" "json"
[00:46:00] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test --target thumbv6m-none-eabi,thumbv7m-none-eabi,thumbv7em-none-eabi,thumbv7em-none-eabihf src/test/run-make
[00:46:00] Build completed unsuccessfully in 0:42:14
travis_time:end:01434e40:start=1543727275985231695,finish=1543730037202095022,duration=2761216863327
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 1.
---
travis_time:end:15500b1c:start=1543730038323319619,finish=1543730038331904784,duration=8585165
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:07b53f7c
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb --batch -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:06455fdc
travis_time:start:06455fdc
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:00e5f508
$ dmesg | grep -i kill

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)

[nikic]

[00:46:00] LLVM ERROR: Unexpected anonymous function when writing summary

Very likely due to #56358.