Regression test added for an async ICE.

[gilescope]

Regression test for #57084 (as suggested in issue).

[rust-highfive]

r? @nikomatsakis

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[gilescope]

I see there's a run-pass/generator - would it be better placed in there or alt should there be a run-pass/async dir?

[petrochenkov]

@bors r+ rollup

I see there's a run-pass/generator - would it be better placed in there or alt should there be a run-pass/async dir?

There are no hard requirements on test directories, but making a directory for a single test would probably be excessive.
You can move it into run-pass/generator, I'll re-r+ it then.

[bors]

📌 Commit 6dd2a85 has been approved by petrochenkov

[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:23a04d28:start=1551777037113578099,finish=1551777111957540921,duration=74843962822
$ 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
Setting environment variables from .travis.yml
$ export IMAGE=x86_64-gnu-llvm-6.0
---
[00:03:24] tidy error: /checkout/src/test/run-pass/generator/issue-57084.rs:19: trailing whitespace
[00:03:26] some tidy checks failed
[00:03:26] 
[00:03:26] 
[00:03:26] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/tidy" "/checkout/src" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "--no-vendor" "--quiet"
[00:03:26] 
[00:03:26] 
[00:03:26] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test src/tools/tidy
[00:03:26] Build completed unsuccessfully in 0:00:44
[00:03:26] Build completed unsuccessfully in 0:00:44
[00:03:26] make: *** [tidy] Error 1
[00:03:26] Makefile:68: recipe for target 'tidy' failed
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:1914b04a
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Tue Mar  5 09:15:27 UTC 2019
---
travis_time:end:06092f28:start=1551777327989569186,finish=1551777327994287498,duration=4718312
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:26ecca10
$ 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:0706767a
travis_time:start:0706767a
$ 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:0aa63e00
$ 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)

[petrochenkov]

@bors r+ rollup

[bors]

📌 Commit fcec51d has been approved by petrochenkov

[gilescope]

Ok, I think this is as good as it gets. Request to merge please @petrochenkov ?

[petrochenkov]

@bors r+ rollup

[bors]

📌 Commit 143e7d5 has been approved by petrochenkov

[bors]

🌲 The tree is currently closed for pull requests below priority 50, this pull request will be tested once the tree is reopened