Utilize `?` instead of `return None`. #56119

frewsxcv · 2018-11-21T04:02:36Z

No description provided.

rust-highfive · 2018-11-21T04:56:07Z

The job x86_64-gnu-llvm-5.0 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:007f65ac:start=1542773667222586693,finish=1542773723368948278,duration=56146361585
$ 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-5.0
---
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
  Downloading https://files.pythonhosted.org/packages/ef/cc/d8f288b5b450e59b92c460727012ee002925324bc655255a9945a45ab9ad/awscli-1.16.59-py2.py3-none-any.whl (1.4MB)
    0% |▎                               | 10kB 18.7MB/s eta 0:00:01
    1% |▌                               | 20kB 1.9MB/s eta 0:00:01
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---
[00:40:22]    Compiling parking_lot_core v0.3.0
[00:40:22]    Compiling tempfile v3.0.3
[00:40:24]    Compiling parking_lot v0.6.4
[00:40:25]    Compiling rustdoc v0.0.0 (/checkout/src/librustdoc)
[00:40:25] error: expected one of `.`, `;`, `?`, or an operator, found `for`
[00:40:25]     --> librustdoc/clean/mod.rs:3987:13
[00:40:25]      |
[00:40:25] 3985 |             let segment = path_it.next()?
[00:40:25]      |                                          - expected one of `.`, `;`, `?`, or an operator here
[00:40:25] 3986 | 
[00:40:25] 3987 |             for item in mem::replace(&mut items, Lrc::new(vec![])).iter() {
[00:40:25]      |             ^^^ unexpected token
travis_time:end:057e54b4:start=1542773731993765104,finish=1542776163432227864,duration=2431438462760
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:11b4f58a
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
---
travis_time:end:0788cc40:start=1542776164242627075,finish=1542776164248065482,duration=5438407
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:0805d226
$ 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:af