upgrade rustdoc's pulldown-cmark to 0.5.2

[euclio]

Fixes #60482.

[rust-highfive]

The job x86_64-gnu-llvm-6.0 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.

travis_time:end:0128d6de:start=1557782604023451807,finish=1557782604857405369,duration=833953562
$ git checkout -qf FETCH_HEAD
travis_fold:end:git.checkout

Encrypted environment variables have been removed for security reasons.
See https://docs.travis-ci.com/user/pull-requests/#pull-requests-and-security-restrictions
$ export SCCACHE_BUCKET=rust-lang-ci-sccache2
$ export SCCACHE_REGION=us-west-1
$ export GCP_CACHE_BUCKET=rust-lang-ci-cache
$ export AWS_ACCESS_KEY_ID=AKIA46X5W6CZEJZ6XT55
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travis_time:start:test_codegen
Check compiletest suite=codegen mode=codegen (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:23:23] 
[01:23:23] running 143 tests
[01:23:26] i..iii.....iii...iiii....i......................i..i.................i.....i..........ii.i..i..i.ii. 100/143
[01:23:28] test result: ok. 113 passed; 0 failed; 30 ignored; 0 measured; 0 filtered out
[01:23:28] 
[01:23:28]  finished in 4.553
[01:23:28] travis_fold:end:test_codegen
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travis_time:start:test_assembly
Check compiletest suite=assembly mode=assembly (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:23:30] 
[01:23:30] running 9 tests
[01:23:30] iiiiiiiii
[01:23:30] 
[01:23:30]  finished in 0.152
[01:23:30] travis_fold:end:test_assembly

---
travis_time:start:test_debuginfo
Check compiletest suite=debuginfo mode=debuginfo-both (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:23:45] 
[01:23:45] running 122 tests
[01:24:10] .iiiii...i.....i..i...i..i.i.i..i.ii..i.i.....i..i....i..........iiii..........i...ii...i.......ii.i 100/122
[01:24:15] .i.i......iii.i.....ii
[01:24:15] 
[01:24:15]  finished in 29.532
[01:24:15] travis_fold:end:test_debuginfo

---
[01:45:30]     Finished release [optimized] target(s) in 1m 03s
[01:45:30]      Running build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/rustdoc-673b6a025d1a02b5
[01:45:30] 
[01:45:30] running 42 tests
[01:45:30] ............F.............................
[01:45:30] 
[01:45:30] ---- html::markdown::tests::test_header stdout ----
[01:45:30] thread 'html::markdown::tests::test_header' panicked at 'assertion failed: `(left == right)`
[01:45:30] thread 'html::markdown::tests::test_header' panicked at 'assertion failed: `(left == right)`
[01:45:30]   left: `"<h4 id=\"foo--bar----qux\" class=\"section-header\"><a href=\"#foo--bar----qux\"><strong>Foo?</strong> &amp; *bar?!*  <em><code>baz</code></em> ❤ #qux</a></h4>"`,
[01:45:30]  right: `"<h4 id=\"foo--bar--baz--qux\" class=\"section-header\"><a href=\"#foo--bar--baz--qux\"><strong>Foo?</strong> &amp; *bar?!*  <em><code>baz</code></em> ❤ #qux</a></h4>"`: original: #### **Foo?** & \*bar?!*  _`baz`_ ❤ #qux', src/librustdoc/html/markdown.rs:1100:13
[01:45:30] 
[01:45:30] 
[01:45:30] failures:
[01:45:30]     html::markdown::tests::test_header
[01:45:30]     html::markdown::tests::test_header
[01:45:30] 
[01:45:30] test result: FAILED. 41 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[01:45:30] 
[01:45:30] error: test failed, to rerun pass '--lib'
[01:45:30] 
[01:45:30] 
[01:45:30] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "test" "--target" "x86_64-unknown-linux-gnu" "-j" "4" "--release" "--locked" "--color" "always" "--manifest-path" "/checkout/src/tools/rustdoc/Cargo.toml" "-p" "rustdoc:0.0.0" "--" "--quiet"
[01:45:30] 
[01:45:30] 
[01:45:30] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test
[01:45:30] Build completed unsuccessfully in 0:33:51
[01:45:30] Build completed unsuccessfully in 0:33:51
[01:45:30] make: *** [check] Error 1
[01:45:30] Makefile:48: recipe for target 'check' failed
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:0890cc6c
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Mon May 13 23:09:04 UTC 2019
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travis_time:end:0cd9132a:start=1557788946786115900,finish=1557788946790922809,duration=4806909
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:0b7f74aa
$ 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
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travis_time:start:09e63e20
travis_time:start:09e63e20
$ 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:018e5630
$ 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)

[alexcrichton]

r? @QuietMisdreavus

[euclio]

This might need a self.is_in check like the Event::Text arm.

It doesn't, since you can't create an inline code block outside of a paragraph or header.

[euclio]

We may want to hold off on this until pulldown-cmark/pulldown-cmark#325 is merged and released.

[marcusklaas]

The pull request has been merged and we're now preparing a bug fixing release (0.5.2). Shouldn't be more than a day or two.

[marcusklaas]

0.5.2 has been released!

[GuillaumeGomez]

@euclio You can update I guess? ;)

[euclio]

@GuillaumeGomez Updated.

[GuillaumeGomez]

Thanks!

@bors: r+

[bors]

📌 Commit ed8a4d5 has been approved by GuillaumeGomez

[jonas-schievink]

This also affects beta (and shows up a lot in the crater runs in #61401), nominating for backport

[QuietMisdreavus]

Accepting backport nomination.