maps_pixel_test became flaky on the Nexus 5X within the past few days. Please see this bot:
https://build.chromium.org/p/chromium.gpu.fyi/builders/Android%20Release%20%28Nexus%205X%29?numbuilds=200

The first build in which it flaked included this Catapult roll:

https://chromium.googlesource.com/chromium/src/+/66729904d0d4b9a00dd671db4714cbc7e40495d0

Could the ADB roll that was part of that roll have introduced this flakiness?

Here's a log excerpt from one of the recent failing builds. John, could you please take this on?

https://build.chromium.org/p/chromium.gpu.fyi/builders/Android%20Release%20%28Nexus%205X%29/builds/3631

[ RUN      ] Maps.maps_004
...
(INFO) 2016-11-01 10:09:54,551 browser.DumpStateUponFailure:350  *************** BROWSER STANDARD OUTPUT ***************
(INFO) 2016-11-01 10:09:54,551 browser.DumpStateUponFailure:352  Cannot get standard output on Android
(INFO) 2016-11-01 10:09:54,551 browser.DumpStateUponFailure:355  *********** END OF BROWSER STANDARD OUTPUT ************
(INFO) 2016-11-01 10:09:54,551 browser.DumpStateUponFailure:357  ********************* BROWSER LOG *********************
(INFO) 2016-11-01 10:09:54,551 browser.DumpStateUponFailure:359  No log file
(INFO) 2016-11-01 10:09:54,551 browser.DumpStateUponFailure:362  ***************** END OF BROWSER LOG ******************
...
Traceback (most recent call last):
...
  File "/b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/third_party/websocket-client/websocket.py", line 746, in _recv_strict
    bytes = self._recv(shortage)
  File "/b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/third_party/websocket-client/websocket.py", line 739, in _recv
    raise WebSocketConnectionClosedException()
DevtoolsTargetCrashException: Devtools target crashed
********************************************************************************
(/b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:397 _ConvertExceptionFromInspectorWebsocket) Original exception:

********************************************************************************
(/b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:418 _AddDebuggingInformation) Received a socket error in the browser connection and the tab no longer exists. The tab probably crashed.
********************************************************************************
(/b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:419 _AddDebuggingInformation) Debugger url: ws://127.0.0.1:37407/devtools/page/0
Found Minidump: True
Stack Trace:
********************************************************************************
	UI dump
	- (no package):
	  - (no id)
	- org.chromium.chrome:
	  - (no id)
	  - android:id/content
	  - map_div
	  - org.chromium.chrome:id/action_bar_root
	  - org.chromium.chrome:id/compositor_view_holder
	  - org.chromium.chrome:id/control_container
	  - org.chromium.chrome:id/location_bar
	  - org.chromium.chrome:id/menu_button
	  - org.chromium.chrome:id/menu_button_wrapper
	  - org.chromium.chrome:id/tab_switcher_button
	  - org.chromium.chrome:id/toolbar
	  - org.chromium.chrome:id/toolbar_buttons
	  - org.chromium.chrome:id/toolbar_container
	  - org.chromium.chrome:id/toolbar_shadow
	  - org.chromium.chrome:id/url_bar['map-test/performance.html']
	********************************************************************************
	Logcat
	--------- beginning of main
	11-01 17:09:45.117 24538 24538 D AndroidRuntime: >>>>>> START com.android.internal.os.RuntimeInit uid 0 <<<<<<
	11-01 17:09:45.124 24538 24538 D AndroidRuntime: CheckJNI is OFF
	11-01 17:09:45.153 24538 24538 D ICU     : No timezone override file found: /data/misc/zoneinfo/current/icu/icu_tzdata.dat
	11-01 17:09:45.189 24538 24538 I Radio-JNI: register_android_hardware_Radio DONE
	11-01 17:09:45.206 24538 24538 D AndroidRuntime: Calling main entry com.android.commands.am.Am
	--------- beginning of system
	11-01 17:09:45.209   945  4066 I ActivityManager: START u0 {dat=about:blank flg=0x10000000 cmp=org.chromium.chrome/com.google.android.apps.chrome.Main} from uid 0 on display 0
	11-01 17:09:45.222  4217  4233 W SearchService: Abort, client detached.
	11-01 17:09:45.227  4217  4217 I HotwordDetector: Closing mic
	11-01 17:09:45.227  4217  4591 I MicrophoneInputStream: mic_close com.google.android.apps.gsa.speech.audio.x@77184f5
	11-01 17:09:45.227  4217 24173 E AudioRecord-JNI: Error -4 during AudioRecord native read
	11-01 17:09:45.235   945  5287 I ActivityManager: Start proc 24546:org.chromium.chrome/u0a160 for activity org.chromium.chrome/com.google.android.apps.chrome.Main
	11-01 17:09:45.281   666 24175 D audio_hw_primary: disable_audio_route: reset and update mixer path: audio-record
	11-01 17:09:45.282   666 24175 D audio_hw_primary: disable_snd_device: snd_device(61: voice-rec-mic)
	11-01 17:09:45.284   666 24175 I soundtrigger: audio_extn_sound_trigger_update_device_status: device 0x3d of type 1 for Event 0
	11-01 17:09:45.284   666 24175 D sound_trigger_platform: platform_stdev_check_and_update_concurrency: concurrency active 0, tx 0, rx 0, concurrency session_allowed 1
	11-01 17:09:45.285   666  3135 I SoundTriggerHwService::Module: void android::SoundTriggerHwService::Module::onCallbackEvent(const android::sp<android::SoundTriggerHwService::CallbackEvent>&) mClient == 0
	11-01 17:09:45.286  4217  4593 I MicroRecognitionRnrImpl: Stopping hotword detection.
	11-01 17:09:45.286  4217 24172 I MicroRecognitionRnrImpl: Detection finished
	11-01 17:09:45.300 24546 24546 I cr_InstantAppsHandler: Not handling with Instant Apps
	11-01 17:09:45.304   945   957 I ActivityManager: START u0 {dat=about:blank flg=0x14002000 cmp=org.chromium.chrome/.browser.ChromeTabbedActivity (has extras)} from uid 10160 on display 0
	11-01 17:09:45.413 24546 24568 I cr_LibraryLoader: Using linker: org.chromium.base.library_loader.ModernLinker
	11-01 17:09:45.417 24546 24569 I cr_base : Extracting resource /data/user/0/org.chromium.chrome/app_chrome/paks/en-GB.pak
	11-01 17:09:45.422 24546 24570 W cr_tabmodel: Starting to perform legacy migration.
	11-01 17:09:45.423 24546 24569 I cr_base : Extracting resource /data/user/0/org.chromium.chrome/app_chrome/paks/en-US.pak
	11-01 17:09:45.425 24546 24570 W cr_tabmodel: Finished performing legacy migration.
	11-01 17:09:45.425 24546 24570 W cr_tabmodel: Starting to perform multi-instance migration.
	11-01 17:09:45.426 24546 24570 W cr_tabmodel: Finished performing multi-instance migration.
	11-01 17:09:45.427 24546 24571 W cr_tabmodel: Starting to fetch tab list.
	11-01 17:09:45.428 24546 24571 E cr_tabmodel: State file does not exist.
	11-01 17:09:45.430 24546 24572 D OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
	11-01 17:09:45.432 24546 24568 I cr_LibraryLoader: Loading chrome from within /data/app/org.chromium.chrome-1/base.apk
	11-01 17:09:45.488 24546 24572 I Adreno  : QUALCOMM build                   : 63c06b2, I8366cd0437
	11-01 17:09:45.488 24546 24572 I Adreno  : Build Date                       : 10/21/15
	11-01 17:09:45.488 24546 24572 I Adreno  : OpenGL ES Shader Compiler Version: XE031.05.13.02
	11-01 17:09:45.488 24546 24572 I Adreno  : Local Branch                     : 
	11-01 17:09:45.488 24546 24572 I Adreno  : Remote Branch                    : quic/LA.BF64.1.2.9_v2
	11-01 17:09:45.488 24546 24572 I Adreno  : Remote Branch                    : NONE
	11-01 17:09:45.488 24546 24572 I Adreno  : Reconstruct Branch               : NOTHING
	11-01 17:09:45.514 24546 24572 I OpenGLRenderer: Initialized EGL, version 1.4
	11-01 17:09:45.536 24546 24568 I cr_LibraryLoader: Time to load native libraries: 123 ms (timestamps 8466-8589)
	11-01 17:09:45.537 24546 24568 I cr_LibraryLoader: Expected native library version number "56.0.2907.0", actual native library version number "56.0.2907.0"
	11-01 17:09:45.537 24546 24568 W chromium: [1101/170945:WARNING:trace_config_file.cc(80)] The trace config file does not exist.
	11-01 17:09:45.537 24546 24568 I chromium: [INFO:library_loader_hooks.cc(163)] Chromium logging enabled: level = 0, default verbosity = 0
	11-01 17:09:45.539 24546 24568 W cr_ChildProcLauncher: Create a new ChildConnectionAllocator with package name = org.chromium.chrome, inSandbox = true
	11-01 17:09:45.553   945   956 I ActivityManager: Start proc 24575:org.chromium.chrome:sandboxed_process0/u0i52 for service org.chromium.chrome/org.chromium.content.app.SandboxedProcessService0
	11-01 17:09:45.569 24575 24575 W dboxed_process0: type=1400 audit(0.0:634): avc: denied { search } for name="tmp" dev="dm-2" ino=384274 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:shell_data_file:s0 tclass=dir permissive=0
	11-01 17:09:45.586 24575 24575 I cr_ChildProcessService: Creating new ChildProcessService pid=24575
	11-01 17:09:45.629   945   970 I ActivityManager: Displayed org.chromium.chrome/.browser.ChromeTabbedActivity: +319ms (total +404ms)
	11-01 17:09:45.630 24538 24538 D AndroidRuntime: Shutting down VM
	11-01 17:09:45.632  3873  3873 I Keyboard.Facilitator: onFinishInput()
	11-01 17:09:45.662 24546 24546 I cr_BrowserStartup: Initializing chromium process, singleProcess=false
	11-01 17:09:45.679 24546 24590 W chromium: [WARNING:dns_config_service_posix.cc(316)] Failed to read DnsConfig.
	11-01 17:09:45.740 24546 24546 E chromium: [ERROR:shell_integration_android.cc(22)] Not implemented reached in shell_integration::DefaultWebClientSetPermission shell_integration::GetDefaultWebClientSetPermission()
	11-01 17:09:45.745 24546 24546 W GooglePlayServicesUtil: Google Play services out of date.  Requires 9877000 but found 8186448
	11-01 17:09:45.768   945  3544 I ActivityManager: Start proc 24611:org.chromium.chrome:privileged_process0/u0a160 for service org.chromium.chrome/org.chromium.content.app.PrivilegedProcessService0
	11-01 17:09:45.787 24546 24546 W GooglePlayServicesUtil: Google Play services out of date.  Requires 9877000 but found 8186448
	11-01 17:09:45.787 24546 24546 I cr_SnippetsLauncher: Disabling SnippetsLauncher because Play Services is not up to date.
	11-01 17:09:45.811   945  3925 D ConnectivityService: listenForNetwork for Listen from uid/pid:10160/24546 for NetworkRequest [ id=309, legacyType=-1, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED] ]
	11-01 17:09:45.813 24611 24611 I cr_ChildProcessService: Creating new ChildProcessService pid=24611
	11-01 17:09:45.814 24546 24546 W GooglePlayServicesUtil: Google Play services out of date.  Requires 9877000 but found 8186448
	11-01 17:09:45.814 24546 24546 I cr_BgSyncLauncher: Disabling Background Sync because Play Services is not up to date.
	11-01 17:09:45.819 24611 24630 I cr_LibraryLoader: Using linker: org.chromium.base.library_loader.ModernLinker
	11-01 17:09:45.834 24611 24630 I cr_LibraryLoader: Loading chrome from within /data/app/org.chromium.chrome-1/base.apk
	11-01 17:09:45.843   945  3298 D ConnectivityService: listenForNetwork for Listen from uid/pid:10160/24546 for NetworkRequest [ id=310, legacyType=-1, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED] ]
	11-01 17:09:45.876 24611 24630 I cr_LibraryLoader: Time to load native libraries: 55 ms (timestamps 8874-8929)
	11-01 17:09:45.876 24611 24630 I cr_LibraryLoader: Expected native library version number "56.0.2907.0", actual native library version number "56.0.2907.0"
	11-01 17:09:45.877 24611 24630 W chromium: [1101/170945:WARNING:trace_config_file.cc(80)] The trace config file does not exist.
	11-01 17:09:45.877 24611 24630 I chromium: [INFO:library_loader_hooks.cc(163)] Chromium logging enabled: level = 0, default verbosity = 0
	11-01 17:09:45.891 24611 24630 E libEGL  : validate_display:255 error 3008 (EGL_BAD_DISPLAY)
	11-01 17:09:45.891 24611 24630 I Adreno  : QUALCOMM build                   : 63c06b2, I8366cd0437
	11-01 17:09:45.891 24611 24630 I Adreno  : Build Date                       : 10/21/15
	11-01 17:09:45.891 24611 24630 I Adreno  : OpenGL ES Shader Compiler Version: XE031.05.13.02
	11-01 17:09:45.891 24611 24630 I Adreno  : Local Branch                     : 
	11-01 17:09:45.891 24611 24630 I Adreno  : Remote Branch                    : quic/LA.BF64.1.2.9_v2
	11-01 17:09:45.891 24611 24630 I Adreno  : Remote Branch                    : NONE
	11-01 17:09:45.891 24611 24630 I Adreno  : Reconstruct Branch               : NOTHING
	11-01 17:09:45.919 24586 24586 W Binder_1: type=1400 audit(0.0:635): avc: denied { ioctl } for path="socket:[91023]" dev="sockfs" ino=91023 ioctlcmd=7704 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:r:untrusted_app:s0:c512,c768 tclass=unix_stream_socket permissive=0
	11-01 17:09:45.919 24586 24586 W Binder_1: type=1400 audit(0.0:636): avc: denied { ioctl } for path="/data/data/org.chromium.chrome/app_chrome/paks/en-US.pak" dev="dm-2" ino=581599 ioctlcmd=7704 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:app_data_file:s0:c512,c768 tclass=file permissive=0
	11-01 17:09:45.919 24586 24586 W Binder_1: type=1400 audit(0.0:637): avc: denied { ioctl } for path=2F646174612F646174612F6F72672E6368726F6D69756D2E6368726F6D652F6170705F6368726F6D652F52454C524F3A6C69626368726F6D652E736F202864656C6574656429 dev="dm-2" ino=581611 ioctlcmd=7704 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:app_data_file:s0:c512,c768 tclass=file permissive=0
	11-01 17:09:45.919 24586 24586 W Binder_1: type=1400 audit(0.0:638): avc: denied { ioctl } for path=2F646174612F646174612F6F72672E6368726F6D69756D2E6368726F6D652F6170705F6368726F6D652F52454C524F3A6C69626368726F6D652E736F202864656C6574656429 dev="dm-2" ino=581611 ioctlcmd=7704 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:app_data_file:s0:c512,c768 tclass=file permissive=0
	11-01 17:09:45.919 24586 24586 W Binder_1: type=1400 audit(0.0:639): avc: denied { ioctl } for path=2F646174612F646174612F6F72672E6368726F6D69756D2E6368726F6D652F6170705F6368726F6D652F52454C524F3A6C69626368726F6D652E736F202864656C6574656429 dev="dm-2" ino=581611 ioctlcmd=7704 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:app_data_file:s0:c512,c768 tclass=file permissive=0
	11-01 17:09:45.919 24586 24586 W Binder_1: type=1400 audit(0.0:640): avc: denied { ioctl } for path="/data/data/org.chromium.chrome/app_chrome/paks/en-US.pak" dev="dm-2" ino=581599 ioctlcmd=7704 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:app_data_file:s0:c512,c768 tclass=file permissive=0
	11-01 17:09:45.919 24586 24586 W Binder_1: type=1400 audit(0.0:641): avc: denied { ioctl } for path="socket:[91023]" dev="sockfs" ino=91023 ioctlcmd=7704 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:r:untrusted_app:s0:c512,c768 tclass=unix_stream_socket permissive=0
	11-01 17:09:45.919 24586 24586 W Binder_1: type=1400 audit(0.0:642): avc: denied { ioctl } for path=2F646174612F646174612F6F72672E6368726F6D69756D2E6368726F6D652F6170705F6368726F6D652F52454C524F3A6C69626368726F6D652E736F202864656C6574656429 dev="dm-2" ino=581611 ioctlcmd=7704 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:app_data_file:s0:c512,c768 tclass=file permissive=0
	11-01 17:09:45.929   945   969 D BluetoothManagerService: Added callback: android.bluetooth.IBluetoothManagerCallback$Stub$Proxy@a5c5845:true
	11-01 17:09:45.931 24575 24586 I cr_LibraryLoader: Using linker: org.chromium.base.library_loader.ModernLinker
	11-01 17:09:45.949 24611 24630 W VideoCapabilities: Unrecognized profile 2130706433 for video/avc
	11-01 17:09:45.949 24575 24588 I cr_LibraryLoader: Loading chrome from within /data/app/org.chromium.chrome-1/base.apk
	11-01 17:09:45.962 24546 24546 W GooglePlayServicesUtil: Google Play services out of date.  Requires 9877000 but found 8186448
	11-01 17:09:45.967 24611 24630 I VideoCapabilities: Unsupported profile 4 for video/mp4v-es
	11-01 17:09:45.991 24575 24588 I cr_LibraryLoader: Time to load native libraries: 59 ms (timestamps 8986-9045)
	11-01 17:09:45.992 24546 24592 I X509Util: Failed to validate the certificate chain, error: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
	11-01 17:09:45.992 24575 24588 I cr_LibraryLoader: Expected native library version number "56.0.2907.0", actual native library version number "56.0.2907.0"
	11-01 17:09:45.992 24575 24588 W chromium: [1101/170945:WARNING:trace_config_file.cc(80)] The trace config file does not exist.
	11-01 17:09:45.993 24575 24588 I chromium: [INFO:library_loader_hooks.cc(163)] Chromium logging enabled: level = 0, default verbosity = 0
	11-01 17:09:45.993  3873  3873 I Keyboard.Facilitator: onFinishInput()
	11-01 17:09:45.994 24546 24591 I X509Util: Failed to validate the certificate chain, error: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
	11-01 17:09:46.069 24546 24546 I cr_Ime  : ImeThread is enabled.
	11-01 17:09:46.209 24546 24546 I cr_BindingManager: Moderate binding enabled: maxSize=20
	11-01 17:09:46.217 24546 24636 W cr_CrashFileManager: /data/user/0/org.chromium.chrome/cache/Crash Reports does not exist or is not a directory
	11-01 17:09:46.217 24546 24651 W cr_CrashFileManager: /data/user/0/org.chromium.chrome/cache/Crash Reports does not exist or is not a directory
	11-01 17:09:46.217 24546 24636 W cr_CrashFileManager: /data/user/0/org.chromium.chrome/cache/Crash Reports does not exist or is not a directory
	11-01 17:09:46.217 24546 24636 W cr_CrashFileManager: /data/user/0/org.chromium.chrome/cache/Crash Reports does not exist or is not a directory
	11-01 17:09:46.217 24546 24651 W cr_CrashFileManager: /data/user/0/org.chromium.chrome/cache/Crash Reports does not exist or is not a directory
	11-01 17:09:46.217 24546 24651 I cr_MinidmpUploadService: Attempting to upload accumulated crash dumps.
	11-01 17:09:46.227 24546 24652 W GooglePlayServicesUtil: Google Play services out of date.  Requires 9877000 but found 8186448
	11-01 17:09:46.265 24546 24546 I cr_PhysicalWeb: Nearby connection failed: ConnectionResult{statusCode=SERVICE_VERSION_UPDATE_REQUIRED, resolution=null, message=null}
	11-01 17:09:46.275 24546 24546 W GooglePlayServicesUtil: Google Play services out of date.  Requires 9877000 but found 8186448
	11-01 17:09:46.277 24546 24546 W GooglePlayServicesUtil: Google Play services out of date.  Requires 9877000 but found 8186448
	11-01 17:09:46.437 24546 24606 E cr_SafeBrowsingApi: Failed to init handler: Attempt to invoke virtual method 'java.lang.Object java.lang.Class.newInstance()' on a null object reference
	11-01 17:09:47.646 24575 24588 I chromium: [INFO:SkFontMgr_android.cpp(163)] Requested font file /system/fonts/NanumGothic.ttf does not exist or cannot be opened.
	11-01 17:09:47.646 24575 24588 I chromium: 
	11-01 17:09:47.647 24575 24588 I chromium: [INFO:SkFontMgr_android.cpp(163)] Requested font file /system/fonts/DroidSansFallback.ttf does not exist or cannot be opened.
	11-01 17:09:47.647 24575 24588 I chromium: 
	11-01 17:09:47.647 24575 24588 I chromium: [INFO:SkFontMgr_android.cpp(163)] Requested font file /system/fonts/MTLmr3m.ttf does not exist or cannot be opened.
	11-01 17:09:47.647 24575 24588 I chromium: 
	11-01 17:09:47.688  3840  3840 I ConfigService: onDestroy
	11-01 17:09:48.687  8222 24432 E chromium: [1101/170948:ERROR:socket.cc(357)] send: Broken pipe
	11-01 17:09:48.687  8222 24432 E chromium: [1101/170948:ERROR:socket.cc(334)] read: Bad file descriptor
	11-01 17:09:48.687  8222 24432 E chromium: [1101/170948:ERROR:command.cc(65)] Read() error, endpoint was unexpectedly closed.
	11-01 17:09:48.687  8222 24432 E chromium: [1101/170948:ERROR:socket.cc(357)] send: Bad file descriptor
	11-01 17:09:48.687  8222 24432 E chromium: [1101/170948:ERROR:device_listener.cc(102)] Host could not connect to server.
	11-01 17:09:48.688  8222 24432 E chromium: [1101/170948:ERROR:device_listener.cc(105)] Adb Control connection lost. Listener port: 38492
	11-01 17:09:48.690 24546 24546 I chromium: [INFO:CONSOLE(98)] "Uncaught CustomError: Error in protected function: Failed to load dataset.", source: http://map-test/tracked.js (98)
	11-01 17:09:52.021 24672 24672 D AndroidRuntime: >>>>>> START com.android.internal.os.RuntimeInit uid 0 <<<<<<
	11-01 17:09:52.026 24672 24672 D AndroidRuntime: CheckJNI is OFF
	11-01 17:09:52.061 24672 24672 D ICU     : No timezone override file found: /data/misc/zoneinfo/current/icu/icu_tzdata.dat
	11-01 17:09:52.122 24672 24672 I Radio-JNI: register_android_hardware_Radio DONE
	11-01 17:09:52.142 24672 24672 D AndroidRuntime: Calling main entry com.android.commands.uiautomator.Launcher
	11-01 17:09:53.225 24672 24672 I AccessibilityNodeInfoDumper: Skipping invisible child: android.view.accessibility.AccessibilityNodeInfo@8000b7d3; boundsInParent: Rect(0, 0 - 1, 5); boundsInScreen: Rect(1, 205 - 1, 210); packageName: org.chromium.chrome; className: android.widget.ImageView; text: null; error: null; maxTextLength: -1; contentDescription: null; viewIdResName: null; checkable: false; checked: false; focusable: false; focused: false; selected: false; clickable: false; longClickable: false; contextClickable: false; enabled: true; password: false; scrollable: false; actions: [AccessibilityAction: ACTION_SELECT - null, AccessibilityAction: ACTION_CLEAR_SELECTION - null, AccessibilityAction: ACTION_ACCESSIBILITY_FOCUS - null, AccessibilityAction: ACTION_UNKNOWN - null]
	11-01 17:09:53.225 24672 24672 I AccessibilityNodeInfoDumper: Skipping invisible child: android.view.accessibility.AccessibilityNodeInfo@8000ac90; boundsInParent: Rect(0, 0 - 0, 0); boundsInScreen: Rect(0, 1794 - 0, 1794); packageName: org.chromium.chrome; className: android.view.View; text: null; error: null; maxTextLength: -1; contentDescription: null; viewIdResName: org.chromium.chrome:id/menu_anchor_stub; checkable: false; checked: false; focusable: false; focused: false; selected: false; clickable: false; longClickable: false; contextClickable: false; enabled: true; password: false; scrollable: false; actions: [AccessibilityAction: ACTION_SELECT - null, AccessibilityAction: ACTION_CLEAR_SELECTION - null, AccessibilityAction: ACTION_ACCESSIBILITY_FOCUS - null, AccessibilityAction: ACTION_UNKNOWN - null]
	11-01 17:09:53.226 24672 24672 W AccessibilityNodeInfoDumper: Fetch time: 17ms
	11-01 17:09:53.227   945  4046 W WindowManager: Attempted to remove non-existing token: android.os.Binder@37a168f
	11-01 17:09:53.231 24672 24672 D AndroidRuntime: Shutting down VM
Traceback (most recent call last):
  RunBenchmark at /b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/internal/story_runner.py:343
    benchmark.ShouldTearDownStateAfterEachStorySetRun())
  Run at /b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/internal/story_runner.py:237
    state.TearDownState()
  traced_function at /b/swarm_slave/w/irx8C1hz/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  TearDownState at /b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/page/shared_page_state.py:311
    self._StopBrowser()
  traced_function at /b/swarm_slave/w/irx8C1hz/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  _StopBrowser at /b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/page/shared_page_state.py:317
    self._browser.Close()
  Close at /b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/internal/browser/browser.py:265
    self._browser_backend.Close()
  traced_function at /b/swarm_slave/w/irx8C1hz/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  Close at /b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/internal/backends/chrome/android_browser_backend.py:227
    self.platform_backend.StopForwardingHost(self._port)
  StopForwardingHost at /b/swarm_slave/w/irx8C1hz/third_party/catapult/telemetry/telemetry/internal/platform/android_platform_backend.py:500
    self._device.adb.ForwardRemove('tcp:%d' % host_port)
  ForwardRemove at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py:632
    retries)
  _RunDeviceAdbCmd at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py:282
    check_error=check_error)
  timeout_retry_wrapper at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/android/decorators.py:57
    retry_if_func=retry_if_func)
  Run at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/utils/timeout_retry.py:159
    error_log_func=error_log_func)
  JoinAll at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/utils/reraiser_thread.py:186
    self._JoinAll(watcher, timeout)
  _JoinAll at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/utils/reraiser_thread.py:158
    thread.ReraiseIfException()
  run at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/utils/reraiser_thread.py:81
    self._ret = self._func(*self._args, **self._kwargs)
  <lambda> at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/utils/timeout_retry.py:152
    child_thread = reraiser_thread.ReraiserThread(lambda: func(*args, **kwargs),
  impl at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/android/decorators.py:47
    return f(*args, **kwargs)
  _RunAdbCmd at /b/swarm_slave/w/irx8C1hz/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py:258
    args, output, status, device_serial)
AdbCommandFailedError: (device: 00e9e2595190c062) adb forward --remove tcp:37407: failed with exit status 1 and output:
- error: listener 'tcp:37407' not found

Locals:
  args          : ['forward', '--remove', 'tcp:37407']
  check_error   : True
  cls           : <class 'devil.android.sdk.adb_wrapper.AdbWrapper'>
  cpu_affinity  : None
  device_serial : '00e9e2595190c062'
  output        : "error: listener 'tcp:37407' not found\n"
  retries       : 2
  status        : 1
  timeout       : 30