See https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=CrSettingsCrostiniPageTest.All

Build log:

LogDog : chromium/bb/chromium.chromiumos/linux-chromeos-dbg/5445/+/recipes/steps/browser_tests/0/logs/CrSettingsCrostiniPageTest.All/0  noel@google.com | Sign out
 [ RUN      ] CrSettingsCrostiniPageTest.All
[4817:4817:0430/021523.571695:WARNING:chrome_browser_main_chromeos.cc(640)] Running as stub user with profile dir: test-user
[4817:4817:0430/021523.723980:WARNING:statistics_provider.cc(330)] Statistics loaded after waiting 0ms.
[4817:5040:0430/021523.786197:ERROR:logging_chrome.cc(218)] Unable to create symlink /b/s/w/itOgwm4Q/.org.chromium.Chromium.7wmUll/ddKYv95/test-user/chrome_debug.log pointing at /b/s/w/itOgwm4Q/.org.chromium.Chromium.7wmUll/ddKYv95/test-user/chrome_debug_20180430-021523: No such file or directory (2)
[4817:5042:0430/021524.021634:ERROR:account_manager.cc(36)] Failed to read tokens file
[4817:4817:0430/021524.130914:WARNING:user_session_manager.cc(1086)] Attempting to save user password for non enterprise user.
[4817:4817:0430/021525.854433:INFO:chrome_cryptauth_service.cc(153)] Refresh token not yet available; waiting before starting CryptAuth managers.
[4817:4817:0430/021525.854601:INFO:remote_device_loader.cc(73)] Loading 0 remote devices
[4817:4817:0430/021525.854829:INFO:tether_service.cc(164)] TetherService has started. Initial user preference value: 1
[4817:4817:0430/021526.093841:INFO:tether_service.cc(420)] Tether state has changed. New state: [no potential Tether hosts], Old state: [TetherService initializing]
[1:1:0430/021526.766637:ERROR:render_process_impl.cc(201)] WebFrame LEAKED 1 TIMES
[4817:4817:0430/021527.256990:WARNING:CONSOLE(0)] "Styling master document from stylesheets defined in HTML Imports is deprecated. Please refer to https://goo.gl/EGXzpw for possible migration paths.", source:  (0)
[4817:4817:0430/021528.729981:INFO:CONSOLE(1225)] "Running TestCase CrSettingsCrostiniPageTest.All", source: file:///b/s/w/ir/chrome/test/data/webui/test_api.js (1225)
[4817:4817:0430/021530.137974:ERROR:CONSOLE(2128)] "Uncaught TypeError: this.$$(...).showModal is not a function", source: chrome://resources/polymer/v1_0/polymer/polymer-mini-extracted.js (2128)
[4817:4817:0430/021530.197017:ERROR:CONSOLE(2423)] "Uncaught (in promise) AssertionError: expected undefined to be true", source: file:///b/s/w/ir/third_party/chaijs/chai.js (2423)
[4817:4817:0430/021530.556844:ERROR:web_ui_browser_test.cc(475)] CONDITION FAILURE: encountered javascript console error(s):
[4817:4817:0430/021530.556923:ERROR:web_ui_browser_test.cc(477)] JS ERROR: '[4817:4817:0430/021530.137974:ERROR:CONSOLE(2128)] "Uncaught TypeError: this.$$(...).showModal is not a function", source: chrome://resources/polymer/v1_0/polymer/polymer-mini-extracted.js (2128)
'
[4817:4817:0430/021530.556967:ERROR:web_ui_browser_test.cc(477)] JS ERROR: '[4817:4817:0430/021530.197017:ERROR:CONSOLE(2423)] "Uncaught (in promise) AssertionError: expected undefined to be true", source: file:///b/s/w/ir/third_party/chaijs/chai.js (2423)
'
[4817:4817:0430/021530.557019:ERROR:web_ui_browser_test.cc(479)] JS call assumed failed, because JS console error(s) found.
gen/chrome/test/data/webui/settings/cr_settings_browsertest-gen.cc:2957: Failure
Value of: RunJavascriptTestF( true, "CrSettingsCrostiniPageTest", "All")
  Actual: false
Expected: true
Stack trace:
#0 0x000003ca03b0 StackTraceGetter::CurrentStackTrace()
#1 0x000003cc0f07 testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop()
#2 0x000003cc0362 testing::internal::AssertHelper::operator=()
#3 0x000002eadbd2 CrSettingsCrostiniPageTest_All_Test::RunTestOnMainThread()
#4 0x0000073a57fc content::BrowserTestBase::ProxyRunTestOnMainThreadLoop()
#5 0x0000009d050d _ZN4base8internal13FunctorTraitsIM25RenderViewContextMenuBaseFvvEvE6InvokeIS4_P21RenderViewContextMenuJEEEvT_OT0_DpOT1_
#6 0x0000009d0454 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIM25RenderViewContextMenuBaseFvvEJP21RenderViewContextMenuEEEvOT_DpOT0_
#7 0x0000073a7ab5 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEvOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#8 0x0000073a79fc _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE3RunEPNS0_13BindStateBaseE
#9 0x0000009c26dd _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#10 0x0000063607b8 ChromeBrowserMainParts::PreMainMessageLoopRunImpl()
#11 0x00000635e98e ChromeBrowserMainParts::PreMainMessageLoopRun()
#12 0x0000031b890d chromeos::ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun()
#13 0x7f5df34a737c content::BrowserMainLoop::PreMainMessageLoopRun()
#14 0x7f5df2232a7d _ZN4base8internal13FunctorTraitsIMN7content12ChildProcessEFvvEvE6InvokeIS5_PS3_JEEEvT_OT0_DpOT1_
#15 0x7f5df22329c4 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIMN7content12ChildProcessEFvvEJPS5_EEEvOT_DpOT0_
#16 0x7f5df34acc75 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEiOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#17 0x7f5df34acbbc _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE3RunEPNS0_13BindStateBaseE
#18 0x7f5df213bf9d _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#19 0x7f5df425a97d content::StartupTaskRunner::RunAllTasksNow()
#20 0x7f5df34a34cf content::BrowserMainLoop::CreateStartupTasks()
#21 0x7f5df34aeec3 content::BrowserMainRunnerImpl::Initialize()
#22 0x7f5df349b90e content::BrowserMain()
#23 0x7f5df5453fce content::RunNamedProcessTypeMain()
#24 0x7f5df54576aa content::ContentMainRunnerImpl::Run()
#25 0x7f5df544ae55 content::ContentServiceManagerMainDelegate::RunEmbedderProcess()
#26 0x7f5dee7c1ec3 service_manager::Main()
#27 0x7f5df5450fab content::ContentMain()
#28 0x0000073a4d98 content::BrowserTestBase::SetUp()
#29 0x000006266513 InProcessBrowserTest::SetUp()
#30 0x00000094cf5e _ZN7testing8internal12InvokeHelperIRKNSt3__16vectorIPN12user_manager4UserENS2_9allocatorIS6_EEEENS2_5tupleIJEEEE12InvokeMethodIN8chromeos15MockUserManagerEMSH_KFSB_vEEESB_PT_T0_RKSD_
[4817:5032:0430/021531.382915:WARNING:discardable_shared_memory_manager.cc(431)] Some MojoDiscardableSharedMemoryManagerImpls are still alive. They will be leaked.
[4817:5296:0430/021531.385610:WARNING:internal_linux.cc(64)] Failed to read /proc/5057/stat
[4817:4817:0430/021531.396723:WARNING:url_request_context_getter.cc(43)] URLRequestContextGetter leaking due to no owning thread.
[4817:4817:0430/021531.406574:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[4817:4817:0430/021531.406669:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[  FAILED  ] CrSettingsCrostiniPageTest.All, where TypeParam =  and GetParam() =  (10530 ms)
[ RUN      ] CrSettingsCrostiniPageTest.All
[19448:19448:0430/022038.281489:WARNING:chrome_browser_main_chromeos.cc(640)] Running as stub user with profile dir: test-user
[19448:19469:0430/022038.408351:ERROR:logging_chrome.cc(218)] Unable to create symlink /b/s/w/itOgwm4Q/.org.chromium.Chromium.7wmUll/dlxbaB5/test-user/chrome_debug.log pointing at /b/s/w/itOgwm4Q/.org.chromium.Chromium.7wmUll/dlxbaB5/test-user/chrome_debug_20180430-022038: No such file or directory (2)
[19448:19467:0430/022038.544524:ERROR:account_manager.cc(36)] Failed to read tokens file
[19448:19448:0430/022038.604978:WARNING:user_session_manager.cc(1086)] Attempting to save user password for non enterprise user.
[19448:19448:0430/022039.451832:INFO:chrome_cryptauth_service.cc(153)] Refresh token not yet available; waiting before starting CryptAuth managers.
[19448:19448:0430/022039.451968:INFO:remote_device_loader.cc(73)] Loading 0 remote devices
[19448:19448:0430/022039.452209:INFO:tether_service.cc(164)] TetherService has started. Initial user preference value: 1
[19448:19448:0430/022039.532202:INFO:tether_service.cc(420)] Tether state has changed. New state: [no potential Tether hosts], Old state: [TetherService initializing]
[1:1:0430/022040.025212:ERROR:render_process_impl.cc(201)] WebFrame LEAKED 1 TIMES
[19448:19448:0430/022040.379939:WARNING:CONSOLE(0)] "Styling master document from stylesheets defined in HTML Imports is deprecated. Please refer to https://goo.gl/EGXzpw for possible migration paths.", source:  (0)
[19448:19448:0430/022041.520703:INFO:CONSOLE(1225)] "Running TestCase CrSettingsCrostiniPageTest.All", source: file:///b/s/w/ir/chrome/test/data/webui/test_api.js (1225)
[19448:19448:0430/022042.368845:ERROR:CONSOLE(2128)] "Uncaught TypeError: this.$$(...).showModal is not a function", source: chrome://resources/polymer/v1_0/polymer/polymer-mini-extracted.js (2128)
[19448:19448:0430/022042.422618:ERROR:CONSOLE(2423)] "Uncaught (in promise) AssertionError: expected undefined to be true", source: file:///b/s/w/ir/third_party/chaijs/chai.js (2423)
[19448:19448:0430/022042.610622:ERROR:web_ui_browser_test.cc(475)] CONDITION FAILURE: encountered javascript console error(s):
[19448:19448:0430/022042.610691:ERROR:web_ui_browser_test.cc(477)] JS ERROR: '[19448:19448:0430/022042.368845:ERROR:CONSOLE(2128)] "Uncaught TypeError: this.$$(...).showModal is not a function", source: chrome://resources/polymer/v1_0/polymer/polymer-mini-extracted.js (2128)
'
[19448:19448:0430/022042.610725:ERROR:web_ui_browser_test.cc(477)] JS ERROR: '[19448:19448:0430/022042.422618:ERROR:CONSOLE(2423)] "Uncaught (in promise) AssertionError: expected undefined to be true", source: file:///b/s/w/ir/third_party/chaijs/chai.js (2423)
'
[19448:19448:0430/022042.610762:ERROR:web_ui_browser_test.cc(479)] JS call assumed failed, because JS console error(s) found.
gen/chrome/test/data/webui/settings/cr_settings_browsertest-gen.cc:2957: Failure
Value of: RunJavascriptTestF( true, "CrSettingsCrostiniPageTest", "All")
  Actual: false
Expected: true
Stack trace:
#0 0x000003ca03b0 StackTraceGetter::CurrentStackTrace()
#1 0x000003cc0f07 testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop()
#2 0x000003cc0362 testing::internal::AssertHelper::operator=()
#3 0x000002eadbd2 CrSettingsCrostiniPageTest_All_Test::RunTestOnMainThread()
#4 0x0000073a57fc content::BrowserTestBase::ProxyRunTestOnMainThreadLoop()
#5 0x0000009d050d _ZN4base8internal13FunctorTraitsIM25RenderViewContextMenuBaseFvvEvE6InvokeIS4_P21RenderViewContextMenuJEEEvT_OT0_DpOT1_
#6 0x0000009d0454 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIM25RenderViewContextMenuBaseFvvEJP21RenderViewContextMenuEEEvOT_DpOT0_
#7 0x0000073a7ab5 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEvOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#8 0x0000073a79fc _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE3RunEPNS0_13BindStateBaseE
#9 0x0000009c26dd _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#10 0x0000063607b8 ChromeBrowserMainParts::PreMainMessageLoopRunImpl()
#11 0x00000635e98e ChromeBrowserMainParts::PreMainMessageLoopRun()
#12 0x0000031b890d chromeos::ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun()
#13 0x7fd395a5c37c content::BrowserMainLoop::PreMainMessageLoopRun()
#14 0x7fd3947e7a7d _ZN4base8internal13FunctorTraitsIMN7content12ChildProcessEFvvEvE6InvokeIS5_PS3_JEEEvT_OT0_DpOT1_
#15 0x7fd3947e79c4 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIMN7content12ChildProcessEFvvEJPS5_EEEvOT_DpOT0_
#16 0x7fd395a61c75 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEiOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#17 0x7fd395a61bbc _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE3RunEPNS0_13BindStateBaseE
#18 0x7fd3946f0f9d _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#19 0x7fd39680f97d content::StartupTaskRunner::RunAllTasksNow()
#20 0x7fd395a584cf content::BrowserMainLoop::CreateStartupTasks()
#21 0x7fd395a63ec3 content::BrowserMainRunnerImpl::Initialize()
#22 0x7fd395a5090e content::BrowserMain()
#23 0x7fd397a08fce content::RunNamedProcessTypeMain()
#24 0x7fd397a0c6aa content::ContentMainRunnerImpl::Run()
#25 0x7fd3979ffe55 content::ContentServiceManagerMainDelegate::RunEmbedderProcess()
#26 0x7fd390d76ec3 service_manager::Main()
#27 0x7fd397a05fab content::ContentMain()
#28 0x0000073a4d98 content::BrowserTestBase::SetUp()
#29 0x000006266513 InProcessBrowserTest::SetUp()
#30 0x00000094cf5e _ZN7testing8internal12InvokeHelperIRKNSt3__16vectorIPN12user_manager4UserENS2_9allocatorIS6_EEEENS2_5tupleIJEEEE12InvokeMethodIN8chromeos15MockUserManagerEMSH_KFSB_vEEESB_PT_T0_RKSD_
[19448:19459:0430/022043.244540:WARNING:discardable_shared_memory_manager.cc(431)] Some MojoDiscardableSharedMemoryManagerImpls are still alive. They will be leaked.
[19448:19554:0430/022043.247422:WARNING:internal_linux.cc(64)] Failed to read /proc/19478/stat
[19448:19448:0430/022043.284063:WARNING:url_request_context_getter.cc(43)] URLRequestContextGetter leaking due to no owning thread.
[19448:19448:0430/022043.292576:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[19448:19448:0430/022043.292642:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[  FAILED  ] CrSettingsCrostiniPageTest.All, where TypeParam =  and GetParam() =  (6842 ms)
[ RUN      ] CrSettingsCrostiniPageTest.All
[19555:19555:0430/022046.864816:WARNING:chrome_browser_main_chromeos.cc(640)] Running as stub user with profile dir: test-user
[19555:19576:0430/022046.984981:ERROR:logging_chrome.cc(218)] Unable to create symlink /b/s/w/itOgwm4Q/.org.chromium.Chromium.7wmUll/dnjhfzm/test-user/chrome_debug.log pointing at /b/s/w/itOgwm4Q/.org.chromium.Chromium.7wmUll/dnjhfzm/test-user/chrome_debug_20180430-022046: No such file or directory (2)
[19555:19574:0430/022047.115521:ERROR:account_manager.cc(36)] Failed to read tokens file
[19555:19555:0430/022047.172034:WARNING:user_session_manager.cc(1086)] Attempting to save user password for non enterprise user.
[19555:19555:0430/022048.021056:INFO:chrome_cryptauth_service.cc(153)] Refresh token not yet available; waiting before starting CryptAuth managers.
[19555:19555:0430/022048.021300:INFO:remote_device_loader.cc(73)] Loading 0 remote devices
[19555:19555:0430/022048.021640:INFO:tether_service.cc(164)] TetherService has started. Initial user preference value: 1
[19555:19555:0430/022048.117037:INFO:tether_service.cc(420)] Tether state has changed. New state: [no potential Tether hosts], Old state: [TetherService initializing]
[1:1:0430/022048.627357:ERROR:render_process_impl.cc(201)] WebFrame LEAKED 1 TIMES
[19555:19555:0430/022048.899042:WARNING:CONSOLE(0)] "Styling master document from stylesheets defined in HTML Imports is deprecated. Please refer to https://goo.gl/EGXzpw for possible migration paths.", source:  (0)
[19555:19555:0430/022050.077584:INFO:CONSOLE(1225)] "Running TestCase CrSettingsCrostiniPageTest.All", source: file:///b/s/w/ir/chrome/test/data/webui/test_api.js (1225)
[19555:19555:0430/022050.944568:ERROR:CONSOLE(2128)] "Uncaught TypeError: this.$$(...).showModal is not a function", source: chrome://resources/polymer/v1_0/polymer/polymer-mini-extracted.js (2128)
[19555:19555:0430/022050.997909:ERROR:CONSOLE(2423)] "Uncaught (in promise) AssertionError: expected undefined to be true", source: file:///b/s/w/ir/third_party/chaijs/chai.js (2423)
[19555:19555:0430/022051.187536:ERROR:web_ui_browser_test.cc(475)] CONDITION FAILURE: encountered javascript console error(s):
[19555:19555:0430/022051.187592:ERROR:web_ui_browser_test.cc(477)] JS ERROR: '[19555:19555:0430/022050.944568:ERROR:CONSOLE(2128)] "Uncaught TypeError: this.$$(...).showModal is not a function", source: chrome://resources/polymer/v1_0/polymer/polymer-mini-extracted.js (2128)
'
[19555:19555:0430/022051.187625:ERROR:web_ui_browser_test.cc(477)] JS ERROR: '[19555:19555:0430/022050.997909:ERROR:CONSOLE(2423)] "Uncaught (in promise) AssertionError: expected undefined to be true", source: file:///b/s/w/ir/third_party/chaijs/chai.js (2423)
'
[19555:19555:0430/022051.187658:ERROR:web_ui_browser_test.cc(479)] JS call assumed failed, because JS console error(s) found.
gen/chrome/test/data/webui/settings/cr_settings_browsertest-gen.cc:2957: Failure
Value of: RunJavascriptTestF( true, "CrSettingsCrostiniPageTest", "All")
  Actual: false
Expected: true
Stack trace:
#0 0x000003ca03b0 StackTraceGetter::CurrentStackTrace()
#1 0x000003cc0f07 testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop()
#2 0x000003cc0362 testing::internal::AssertHelper::operator=()
#3 0x000002eadbd2 CrSettingsCrostiniPageTest_All_Test::RunTestOnMainThread()
#4 0x0000073a57fc content::BrowserTestBase::ProxyRunTestOnMainThreadLoop()
#5 0x0000009d050d _ZN4base8internal13FunctorTraitsIM25RenderViewContextMenuBaseFvvEvE6InvokeIS4_P21RenderViewContextMenuJEEEvT_OT0_DpOT1_
#6 0x0000009d0454 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIM25RenderViewContextMenuBaseFvvEJP21RenderViewContextMenuEEEvOT_DpOT0_
#7 0x0000073a7ab5 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEvOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#8 0x0000073a79fc _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE3RunEPNS0_13BindStateBaseE
#9 0x0000009c26dd _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#10 0x0000063607b8 ChromeBrowserMainParts::PreMainMessageLoopRunImpl()
#11 0x00000635e98e ChromeBrowserMainParts::PreMainMessageLoopRun()
#12 0x0000031b890d chromeos::ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun()
#13 0x7f62bf0f537c content::BrowserMainLoop::PreMainMessageLoopRun()
#14 0x7f62bde80a7d _ZN4base8internal13FunctorTraitsIMN7content12ChildProcessEFvvEvE6InvokeIS5_PS3_JEEEvT_OT0_DpOT1_
#15 0x7f62bde809c4 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIMN7content12ChildProcessEFvvEJPS5_EEEvOT_DpOT0_
#16 0x7f62bf0fac75 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEiOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#17 0x7f62bf0fabbc _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE3RunEPNS0_13BindStateBaseE
#18 0x7f62bdd89f9d _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#19 0x7f62bfea897d content::StartupTaskRunner::RunAllTasksNow()
#20 0x7f62bf0f14cf content::BrowserMainLoop::CreateStartupTasks()
#21 0x7f62bf0fcec3 content::BrowserMainRunnerImpl::Initialize()
#22 0x7f62bf0e990e content::BrowserMain()
#23 0x7f62c10a1fce content::RunNamedProcessTypeMain()
#24 0x7f62c10a56aa content::ContentMainRunnerImpl::Run()
#25 0x7f62c1098e55 content::ContentServiceManagerMainDelegate::RunEmbedderProcess()
#26 0x7f62ba40fec3 service_manager::Main()
#27 0x7f62c109efab content::ContentMain()
#28 0x0000073a4d98 content::BrowserTestBase::SetUp()
#29 0x000006266513 InProcessBrowserTest::SetUp()
#30 0x00000094cf5e _ZN7testing8internal12InvokeHelperIRKNSt3__16vectorIPN12user_manager4UserENS2_9allocatorIS6_EEEENS2_5tupleIJEEEE12InvokeMethodIN8chromeos15MockUserManagerEMSH_KFSB_vEEESB_PT_T0_RKSD_
[19555:19566:0430/022051.820320:WARNING:discardable_shared_memory_manager.cc(431)] Some MojoDiscardableSharedMemoryManagerImpls are still alive. They will be leaked.
[19555:19662:0430/022051.823240:WARNING:internal_linux.cc(64)] Failed to read /proc/19585/stat
[19555:19555:0430/022051.869942:WARNING:url_request_context_getter.cc(43)] URLRequestContextGetter leaking due to no owning thread.
[19555:19555:0430/022051.877328:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[19555:19555:0430/022051.877384:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[  FAILED  ] CrSettingsCrostiniPageTest.All, where TypeParam =  and GetParam() =  (6774 ms)
[ RUN      ] CrSettingsCrostiniPageTest.All
[19663:19663:0430/022055.400612:WARNING:chrome_browser_main_chromeos.cc(640)] Running as stub user with profile dir: test-user
[19663:19682:0430/022055.522724:ERROR:logging_chrome.cc(218)] Unable to create symlink /b/s/w/itOgwm4Q/.org.chromium.Chromium.7wmUll/dMur8kD/test-user/chrome_debug.log pointing at /b/s/w/itOgwm4Q/.org.chromium.Chromium.7wmUll/dMur8kD/test-user/chrome_debug_20180430-022055: No such file or directory (2)
[19663:19685:0430/022055.653470:ERROR:account_manager.cc(36)] Failed to read tokens file
[19663:19663:0430/022055.709726:WARNING:user_session_manager.cc(1086)] Attempting to save user password for non enterprise user.
[19663:19663:0430/022056.553655:INFO:chrome_cryptauth_service.cc(153)] Refresh token not yet available; waiting before starting CryptAuth managers.
[19663:19663:0430/022056.553835:INFO:remote_device_loader.cc(73)] Loading 0 remote devices
[19663:19663:0430/022056.554053:INFO:tether_service.cc(164)] TetherService has started. Initial user preference value: 1
[19663:19663:0430/022056.638160:INFO:tether_service.cc(420)] Tether state has changed. New state: [no potential Tether hosts], Old state: [TetherService initializing]
[1:1:0430/022057.196801:ERROR:render_process_impl.cc(201)] WebFrame LEAKED 1 TIMES
[19663:19663:0430/022057.493593:WARNING:CONSOLE(0)] "Styling master document from stylesheets defined in HTML Imports is deprecated. Please refer to https://goo.gl/EGXzpw for possible migration paths.", source:  (0)
[19663:19663:0430/022058.637461:INFO:CONSOLE(1225)] "Running TestCase CrSettingsCrostiniPageTest.All", source: file:///b/s/w/ir/chrome/test/data/webui/test_api.js (1225)
[19663:19663:0430/022059.538827:ERROR:CONSOLE(2128)] "Uncaught TypeError: this.$$(...).showModal is not a function", source: chrome://resources/polymer/v1_0/polymer/polymer-mini-extracted.js (2128)
[19663:19663:0430/022059.573457:ERROR:CONSOLE(2423)] "Uncaught (in promise) AssertionError: expected undefined to be true", source: file:///b/s/w/ir/third_party/chaijs/chai.js (2423)
[19663:19663:0430/022059.761298:ERROR:web_ui_browser_test.cc(475)] CONDITION FAILURE: encountered javascript console error(s):
[19663:19663:0430/022059.761351:ERROR:web_ui_browser_test.cc(477)] JS ERROR: '[19663:19663:0430/022059.538827:ERROR:CONSOLE(2128)] "Uncaught TypeError: this.$$(...).showModal is not a function", source: chrome://resources/polymer/v1_0/polymer/polymer-mini-extracted.js (2128)
'
[19663:19663:0430/022059.761385:ERROR:web_ui_browser_test.cc(477)] JS ERROR: '[19663:19663:0430/022059.573457:ERROR:CONSOLE(2423)] "Uncaught (in promise) AssertionError: expected undefined to be true", source: file:///b/s/w/ir/third_party/chaijs/chai.js (2423)
'
[19663:19663:0430/022059.761412:ERROR:web_ui_browser_test.cc(479)] JS call assumed failed, because JS console error(s) found.
gen/chrome/test/data/webui/settings/cr_settings_browsertest-gen.cc:2957: Failure
Value of: RunJavascriptTestF( true, "CrSettingsCrostiniPageTest", "All")
  Actual: false
Expected: true
Stack trace:
#0 0x000003ca03b0 StackTraceGetter::CurrentStackTrace()
#1 0x000003cc0f07 testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop()
#2 0x000003cc0362 testing::internal::AssertHelper::operator=()
#3 0x000002eadbd2 CrSettingsCrostiniPageTest_All_Test::RunTestOnMainThread()
#4 0x0000073a57fc content::BrowserTestBase::ProxyRunTestOnMainThreadLoop()
#5 0x0000009d050d _ZN4base8internal13FunctorTraitsIM25RenderViewContextMenuBaseFvvEvE6InvokeIS4_P21RenderViewContextMenuJEEEvT_OT0_DpOT1_
#6 0x0000009d0454 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIM25RenderViewContextMenuBaseFvvEJP21RenderViewContextMenuEEEvOT_DpOT0_
#7 0x0000073a7ab5 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEvOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#8 0x0000073a79fc _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE3RunEPNS0_13BindStateBaseE
#9 0x0000009c26dd _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#10 0x0000063607b8 ChromeBrowserMainParts::PreMainMessageLoopRunImpl()
#11 0x00000635e98e ChromeBrowserMainParts::PreMainMessageLoopRun()
#12 0x0000031b890d chromeos::ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun()
#13 0x7f07b72d737c content::BrowserMainLoop::PreMainMessageLoopRun()
#14 0x7f07b6062a7d _ZN4base8internal13FunctorTraitsIMN7content12ChildProcessEFvvEvE6InvokeIS5_PS3_JEEEvT_OT0_DpOT1_
#15 0x7f07b60629c4 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIMN7content12ChildProcessEFvvEJPS5_EEEvOT_DpOT0_
#16 0x7f07b72dcc75 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEiOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#17 0x7f07b72dcbbc _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE3RunEPNS0_13BindStateBaseE
#18 0x7f07b5f6bf9d _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#19 0x7f07b808a97d content::StartupTaskRunner::RunAllTasksNow()
#20 0x7f07b72d34cf content::BrowserMainLoop::CreateStartupTasks()
#21 0x7f07b72deec3 content::BrowserMainRunnerImpl::Initialize()
#22 0x7f07b72cb90e content::BrowserMain()
#23 0x7f07b9283fce content::RunNamedProcessTypeMain()
#24 0x7f07b92876aa content::ContentMainRunnerImpl::Run()
#25 0x7f07b927ae55 content::ContentServiceManagerMainDelegate::RunEmbedderProcess()
#26 0x7f07b25f1ec3 service_manager::Main()
#27 0x7f07b9280fab content::ContentMain()
#28 0x0000073a4d98 content::BrowserTestBase::SetUp()
#29 0x000006266513 InProcessBrowserTest::SetUp()
#30 0x00000094cf5e _ZN7testing8internal12InvokeHelperIRKNSt3__16vectorIPN12user_manager4UserENS2_9allocatorIS6_EEEENS2_5tupleIJEEEE12InvokeMethodIN8chromeos15MockUserManagerEMSH_KFSB_vEEESB_PT_T0_RKSD_
[19663:19674:0430/022100.378690:WARNING:discardable_shared_memory_manager.cc(431)] Some MojoDiscardableSharedMemoryManagerImpls are still alive. They will be leaked.
[19663:19769:0430/022100.381400:WARNING:internal_linux.cc(64)] Failed to read /proc/19694/stat
[19663:19663:0430/022100.419767:WARNING:url_request_context_getter.cc(43)] URLRequestContextGetter leaking due to no owning thread.
[19663:19663:0430/022100.426999:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[19663:19663:0430/022100.427050:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[  FAILED  ] CrSettingsCrostiniPageTest.All, where TypeParam =  and GetParam() =  (6842 ms)

Assigning to rjwright@

Could you please triage, dsiable, or re-assign as you see fit?