In this tryjob:
https://build.chromium.org/p/tryserver.chromium.android/builders/android_optional_gpu_tests_rel/builds/1243

which ran this Swarming job on the Nexus 5X pool:
https://chromium-swarm.appspot.com/task?id=32e963e03b9b7510&refresh=10&show_raw=1

the job completed successfully, but per the logs from the recipe, the collection step timed out.

There are a couple of instances of this on https://build.chromium.org/p/tryserver.chromium.android/builders/android_optional_gpu_tests_rel?numbuilds=200 -- and, actually, these are essentially the last source of flakiness seen today per  Issue 596622 .

Are there enough logs for someone to see what happened to the collect step?


----------

python -u /b/c/b/android/src/tools/swarming_client/swarming.py collect --swarming https://chromium-swarm.appspot.com --decorate --print-status-updates --json /tmp/tmp5HILAV.json --task-output-dir /tmp/tmpGdGNrW
in dir /b/c/b/android:
@@@STEP_LINK@stdout-->stdio@https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Ftryserver.chromium.android%2Fandroid_optional_gpu_tests_rel%2F1243%2F%2B%2Frecipes%2Fsteps%2Fwebgl_conformance_tests__with_patch__on_Android%2F0%2Fstdout@@@
 allow_subannotations: False
 base_name: webgl_conformance_tests (with patch) on Android
 cmd: ['python', '-u', '/b/c/b/android/src/tools/swarming_client/swarming.py', 'collect', '--swarming', 'https://chromium-swarm.appspot.com', '--decorate', '--print-status-updates', '--json', '/tmp/tmp5HILAV.json', '--task-output-dir', '/tmp/tmpGdGNrW']
 cwd: /b/c/b/android
 env: {'GOMA_SERVICE_ACCOUNT_JSON_FILE': '/creds/service_accounts/service-account-goma-client.json', 'PATH': '/b/c/b/android/src/third_party/android_tools/sdk/platform-tools:/b/c/b/android/src/build/android:%(PATH)s'}
 infra_step: False
 name: webgl_conformance_tests (with patch) on Android
 nest_level: 0
 ok_ret: frozenset([0])
 step_test_data: <lambda>(...)
 trigger_specs: []
full environment:
 AWS_CREDENTIAL_FILE: /b/build/site_config/.boto
 BOTO_CONFIG: /b/build/site_config/.boto
 BUILDBOT_BLAMELIST: [u'geofflang@chromium.org']
 BUILDBOT_BRANCH: 
 BUILDBOT_BUILDBOTURL: https://build.chromium.org/p/tryserver.chromium.android/
 BUILDBOT_BUILDERNAME: android_optional_gpu_tests_rel
 BUILDBOT_BUILDNUMBER: 1243
 BUILDBOT_CLOBBER: 
 BUILDBOT_GOT_REVISION: None
 BUILDBOT_MASTERNAME: tryserver.chromium.android
 BUILDBOT_REVISION: 
 BUILDBOT_SCHEDULER: None
 BUILDBOT_SLAVENAME: slave1000-c4
 CHROME_HEADLESS: 1
 DISPLAY: :0.0
 GIT_USER_AGENT: linux2 git/2.11.0 slave1000-c4.c.chromecompute.google.com.internal
 GOMA_SERVICE_ACCOUNT_JSON_FILE: /creds/service_accounts/service-account-goma-client.json
 HOME: /home/chrome-bot
 LANG: en_US.UTF-8
 LOGDOG_STREAM_PREFIX: bb/tryserver.chromium.android/android_optional_gpu_tests_rel/1243
 LOGDOG_STREAM_PROJECT: chromium
 LOGDOG_STREAM_SERVER_PATH: unix:/b/build/rr/tmpurkoVW/butler.sock
 PAGER: cat
 PATH: /b/c/b/android/src/third_party/android_tools/sdk/platform-tools:/b/c/b/android/src/build/android:/home/chrome-bot/slavebin:/b/depot_tools:/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin
 PWD: /b/build/slave/android/build
 PYTHONPATH: /b/rr/tmpeA5m8p/rw/checkout/scripts:/b/rr/tmpeA5m8p/rw/checkout/site_config:/b/rr/tmpeA5m8p/rw/checkout/third_party:/b/rr/tmpeA5m8p/rw/checkout/third_party/buildbot_8_4p1:/b/rr/tmpeA5m8p/rw/checkout/third_party/buildbot_slave_8_4:/b/rr/tmpeA5m8p/rw/checkout/third_party/coverage-3.7.1:/b/rr/tmpeA5m8p/rw/checkout/third_party/decorator_3_3_1:/b/rr/tmpeA5m8p/rw/checkout/third_party/google_api_python_client:/b/rr/tmpeA5m8p/rw/checkout/third_party/httplib2/python2:/b/rr/tmpeA5m8p/rw/checkout/third_party/infra_libs:/b/rr/tmpeA5m8p/rw/checkout/third_party/jinja2:/b/rr/tmpeA5m8p/rw/checkout/third_party/markupsafe:/b/rr/tmpeA5m8p/rw/checkout/third_party/mock-1.0.1:/b/rr/tmpeA5m8p/rw/checkout/third_party/oauth2client:/b/rr/tmpeA5m8p/rw/checkout/third_party/pyasn1:/b/rr/tmpeA5m8p/rw/checkout/third_party/pyasn1-modules:/b/rr/tmpeA5m8p/rw/checkout/third_party/python-rsa:/b/rr/tmpeA5m8p/rw/checkout/third_party/requests_2_10_0:/b/rr/tmpeA5m8p/rw/checkout/third_party/setuptools-0.6c11:/b/rr/tmpeA5m8p/rw/checkout/third_party/sqlalchemy_0_7_1:/b/rr/tmpeA5m8p/rw/checkout/third_party/sqlalchemy_migrate_0_7_1:/b/rr/tmpeA5m8p/rw/checkout/third_party/tempita_0_5:/b/rr/tmpeA5m8p/rw/checkout/third_party/twisted_10_2:/b/rr/tmpeA5m8p/rw/checkout/third_party/uritemplate:/b/rr/tmpeA5m8p/rw/checkout/third_party/site-packages:/b/rr/tmpeA5m8p/rw/checkout/scripts/slave/recipe_modules/test_results/resources:/b/rr/tmpeA5m8p/rw/checkout/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party:/b/rr/tmpeA5m8p/rw/checkout/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/requests:/b/rr/tmpeA5m8p/rw/checkout/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/six:/b/rr/tmpeA5m8p/rw/checkout/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/client-py:/b/rr/tmpeA5m8p/rw/checkout/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/mock-1.0.1:/b/rr/tmpeA5m8p/rw/checkout/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/astunparse:/b/rr/tmpeA5m8p/rw/checkout/scripts/slave/.recipe_deps/recipe_engine:/b/build/site_config:/b/build/scripts:/b/build/scripts/release:/b/build/third_party:/b/build/third_party/requests_2_10_0:/b/build_internal/site_config:/b/build_internal/symsrc:/b/build/slave:/b/build/third_party/buildbot_slave_8_4:/b/build/third_party/twisted_10_2:/b/build/slave/android/build:/usr/lib/python2.7:/usr/lib/python2.7/plat-x86_64-linux-gnu:/usr/lib/python2.7/lib-tk:/usr/lib/python2.7/lib-old:/usr/lib/python2.7/lib-dynload
 PYTHONUNBUFFERED: 1
 TESTING_SLAVENAME: slave1000-c4
 USER: chrome-bot
 USERNAME: chrome-bot

Waiting for results from the following shards: 0

command timed out: 6900 seconds elapsed, attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=6900.007838