Prepare beta 1.33.0, take 2

[pietroalbini]

This PR includes the usual changes for a new beta, and suppresses a few lints on libcore: those lints are false positives caused by an internal attribute (rustc_layout_scalar_valid_range_start) and only happen on stage0.

r? @Mark-Simulacrum

Note: recreated to avoid issues with the old PR.

[rust-highfive]

⚠️ Warning ⚠️

• Pull requests are usually filed against the master branch for this repo, but this one is against beta. Please double check that you specified the right target!
• These commits modify submodules.

[pietroalbini]

@bors r=Mark-Simulacrum p=10

[bors]

📌 Commit b54a00a has been approved by Mark-Simulacrum

[bors]

⌛ Testing commit b54a00a with merge 19229770a30a8e05c7ece9d0e8dbf3ea8c63118c...

[bors]

💔 Test failed - checks-travis

[rust-highfive]

The job x86_64-gnu-tools 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.

[01:48:16] {"jsonrpc":"2.0","method":"window/progress","params":{"done":true,"id":"progress_3","title":"Building"}}Content-Length: 92
[01:48:16] 
[01:48:16] {"jsonrpc":"2.0","method":"window/progress","params":{"id":"progress_2","title":"Indexing"}}Content-Length: 444
[01:48:16] 
[01:48:16] {"jsonrpc":"2.0","method":"textDocument/publishDiagnostics","params":{"diagnostics":[{"code":"E0425","message":"cannot find function `fetch_u32` in module `library`\n\nnot found in `library`","range":{"end":{"character":53,"line":4},"start":{"character":44,"line":4}},"severity":1,"source":"rustc"}],"uri":"file:///checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/rlsit/t2/simple_workspace/binary/src/main.rs"}}Content-Length: 681
[01:48:16] {"jsonrpc":"2.0","method":"textDocument/publishDiagnostics","params":{"diagnostics":[{"code":"unused_variables","message":"unused variable: `unused`\n\nnote: #[warn(unused_variables)] on by default\nhelp: consider using `_unused` instead: `_unused`","range":{"end":{"character":30,"line":2},"start":{"character":24,"line":2}},"severity":2,"source":"rustc"},{"code":"E0308","message":"mismatched types\n\nexpected u32, found u64","range":{"end":{"character":62,"line":9},"start":{"character":44,"line":9}},"severity":1,"source":"rustc"}],"uri":"file:///checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/rlsit/t2/simple_workspace/library/src/lib.rs"}}Content-Length: 104
[01:48:16] 
[01:48:16] {"jsonrpc":"2.0","method":"window/progress","params":{"done":true,"id":"progress_2","title":"Indexing"}}
[01:48:16] ---------------
---
travis_time:end:0fd5577e:start=1547749176362444622,finish=1547749176368963693,duration=6519071
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:023b0734
$ 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:03316a94
travis_time:start:03316a94
$ 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:10fd1b0c
$ 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)

[pietroalbini]

@bors retry

[bors]

⌛ Testing commit b54a00a with merge d1add97...

[bors]

☀️ Test successful - checks-travis, status-appveyor
Approved by: Mark-Simulacrum
Pushing d1add97 to beta...