Filed by sheriff-o-matic@appspot.gserviceaccount.com on behalf of sullivan@google.com

https://ci.chromium.org/buildbot/chromium.perf/Android%20Nexus5X%20WebView%20Perf

Example build:
https://ci.chromium.org/buildbot/chromium.perf/Android%20Nexus5X%20WebView%20Perf/1993
Bot id: 'build190-b7--device7'
https://logs.chromium.org/v/?s=chrome%2Fbb%2Fchromium.perf%2FAndroid_Nexus5X_WebView_Perf%2F1993%2F%2B%2Frecipes%2Fsteps%2Fv8.browsing_mobile_on_Android_device_Nexus_5X%2F0%2Fstdout

Command: /b/swarming/w/ir/.swarming_module_cache/vpython/09eff0/bin/python ../../third_party/catapult/devil/devil/android/tools/system_app.py remove --package com.android.webview com.google.android.webview -v -- ../../testing/scripts/run_telemetry_benchmark_as_googletest.py ../../tools/perf/run_benchmark v8.browsing_mobile -v --upload-results --browser=android-webview --output-format=histograms --webview-embedder-apk=../../out/Release/apks/SystemWebViewShell.apk --isolated-script-test-output=/b/swarming/w/ioIAxyg1/output.json --isolated-script-test-perf-output=/b/swarming/w/ioIAxyg1/perftest-output.json
I    0.004s _FindAdb  Downloading gs://chromium-telemetry/binary_dependencies/adb_8bd43e3930f6eec643d5dc64cab9e5bb4ddf4909 to /b/swarming/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb
I    1.002s TimeoutThread-1-for-MainThread  condition '<lambda>' not met (1.0s)
I    2.003s TimeoutThread-1-for-MainThread  condition '<lambda>' not met (2.0s)
I    3.003s TimeoutThread-1-for-MainThread  condition '<lambda>' not met (3.0s)
I    3.267s TimeoutThread-1-for-MainThread  condition '<lambda>' met (3.3s)
I    3.267s TimeoutThread-1-for-MainThread  [host]> /b/swarming/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb devices
Traceback (most recent call last):
  File "../../third_party/catapult/devil/devil/android/tools/system_app.py", line 218, in <module>
    sys.exit(main(sys.argv[1:]))
  File "../../third_party/catapult/devil/devil/android/tools/system_app.py", line 208, in main
    devices = script_common.GetDevices(args.devices, args.blacklist_file)
  File "/b/swarming/w/ir/third_party/catapult/devil/devil/android/tools/script_common.py", line 47, in GetDevices
    raise device_errors.NoDevicesError()
devil.android.device_errors.NoDevicesError: No devices attached.
+-------------------------------------------------------------------------+
| End of shard 0                                                          |
|  Pending: 45.4s  Duration: 53.0s  Bot: build188-b7--device5  Exit: 1    |
+-------------------------------------------------------------------------+

Can someone from labs take a look?