1608804 - Intermittent devtools/client/framework/test/metrics/browser_metrics_debugger.js | A promise chain failed to handle a rejection: Connection closed, pending request to server0.conn0.child1/frameTarget1, type listWorkers failed

Status: RESOLVED DUPLICATE of bug 1620983

(DevTools :: Framework, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: malexandru [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=284652128&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/GbxdfvZYSU-wxRRNXW9oIA/runs/0/artifacts/public/logs/live_backing.log

---

[task 2020-01-13T12:19:58.158Z] 12:19:58 INFO - TEST-PASS | devtools/client/framework/test/metrics/browser_metrics_debugger.js | Successfully recorded char count for debugger -
[task 2020-01-13T12:19:58.159Z] 12:19:58 INFO - Leaving test bound
[task 2020-01-13T12:19:58.402Z] 12:19:58 INFO - Removing tab.
[task 2020-01-13T12:19:58.402Z] 12:19:58 INFO - Waiting for event: 'TabClose' on [object XULElement].
[task 2020-01-13T12:19:58.419Z] 12:19:58 INFO - Got event: 'TabClose' on [object XULElement].
[task 2020-01-13T12:19:58.420Z] 12:19:58 INFO - Tab removed and finished closing
[task 2020-01-13T12:19:58.424Z] 12:19:58 INFO - GECKO(2270) | JavaScript error: resource://devtools/shared/protocol/Front.js, line 68: Error: Connection closed, pending request to server0.conn0.child1/frameTarget1, type listWorkers failed
[task 2020-01-13T12:19:58.426Z] 12:19:58 INFO - GECKO(2270) | Request stack:
[task 2020-01-13T12:19:58.428Z] 12:19:58 INFO - GECKO(2270) | request@resource://devtools/shared/protocol/Front.js:214:14
[task 2020-01-13T12:19:58.429Z] 12:19:58 INFO - GECKO(2270) | generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:49:19
[task 2020-01-13T12:19:58.430Z] 12:19:58 INFO - GECKO(2270) | listWorkerTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:90:36
[task 2020-01-13T12:19:58.432Z] 12:19:58 INFO - GECKO(2270) | updateTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:173:25
[task 2020-01-13T12:19:58.433Z] 12:19:58 INFO - GECKO(2270) | fetchThreads@resource://devtools/client/debugger/src/client/firefox/commands.js:458:36
[task 2020-01-13T12:19:58.434Z] 12:19:58 INFO - GECKO(2270) | updateThreads/<@resource://devtools/client/debugger/src/actions/threads.js:25:34
[task 2020-01-13T12:19:58.435Z] 12:19:58 INFO - GECKO(2270) | thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45
[task 2020-01-13T12:19:58.436Z] 12:19:58 INFO - GECKO(2270) | bindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:644:12
[task 2020-01-13T12:19:58.436Z] 12:19:58 INFO - GECKO(2270) | threadListChanged@resource://devtools/client/debugger/src/client/firefox/events.js:142:11
[task 2020-01-13T12:19:58.437Z] 12:19:58 INFO - GECKO(2270) | emit@resource://devtools/shared/event-emitter.js:195:24
[task 2020-01-13T12:19:58.438Z] 12:19:58 INFO - GECKO(2270) | emit@resource://devtools/shared/event-emitter.js:276:18
[task 2020-01-13T12:19:58.442Z] 12:19:58 INFO - GECKO(2270) | onPacket@resource://devtools/shared/protocol/Front.js:252:13
[task 2020-01-13T12:19:58.444Z] 12:19:58 INFO - GECKO(2270) | onPacket@resource://devtools/shared/client/debugger-client.js:498:13
[task 2020-01-13T12:19:58.445Z] 12:19:58 INFO - GECKO(2270) | send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2020-01-13T12:19:58.446Z] 12:19:58 INFO - GECKO(2270) | exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22
[task 2020-01-13T12:19:58.447Z] 12:19:58 INFO - GECKO(2270) | DevToolsUtils.executeSoonexports.executeSoon@resource://devtools/shared/DevToolsUtils.js:62:21
[task 2020-01-13T12:19:58.448Z] 12:19:58 INFO - GECKO(2270) | send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2020-01-13T12:19:58.449Z] 12:19:58 INFO - GECKO(2270) | send@resource://devtools/server/debugger-server-connection.js:91:20
[task 2020-01-13T12:19:58.450Z] 12:19:58 INFO - GECKO(2270) | onWorkerListChanged@resource://devtools/server/actors/root.js:477:15
[task 2020-01-13T12:19:58.454Z] 12:19:58 INFO - GECKO(2270) | _notifyListChanged@resource://devtools/server/actors/worker/worker-target-actor-list.js:184:10
[task 2020-01-13T12:19:58.455Z] 12:19:58 INFO - GECKO(2270) | onUnregister@resource://devtools/server/actors/worker/worker-target-actor-list.js:200:12
[task 2020-01-13T12:19:58.456Z] 12:19:58 INFO - TEST-PASS | devtools/client/framework/test/metrics/browser_metrics_debugger.js | The main process DebuggerServer has no pending connection when the test ends -
[task 2020-01-13T12:19:58.457Z] 12:19:58 INFO - TEST-INFO | started process screentopng
[task 2020-01-13T12:19:59.048Z] 12:19:59 INFO - TEST-INFO | screentopng: exit 0
[task 2020-01-13T12:19:59.049Z] 12:19:59 INFO - Buffered messages logged at 12:19:58
[task 2020-01-13T12:19:59.050Z] 12:19:59 INFO - Console message: [JavaScript Error: "Error: Connection closed, pending request to server0.conn0.child1/frameTarget1, type listWorkers failed
[task 2020-01-13T12:19:59.050Z] 12:19:59 INFO -
[task 2020-01-13T12:19:59.050Z] 12:19:59 INFO - Request stack:
[task 2020-01-13T12:19:59.050Z] 12:19:59 INFO - request@resource://devtools/shared/protocol/Front.js:214:14
[task 2020-01-13T12:19:59.050Z] 12:19:59 INFO - generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:49:19
[task 2020-01-13T12:19:59.050Z] 12:19:59 INFO - listWorkerTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:90:36
[task 2020-01-13T12:19:59.050Z] 12:19:59 INFO - updateTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:173:25
[task 2020-01-13T12:19:59.050Z] 12:19:59 INFO - fetchThreads@resource://devtools/client/debugger/src/client/firefox/commands.js:458:36
[task 2020-01-13T12:19:59.051Z] 12:19:59 INFO - updateThreads/<@resource://devtools/client/debugger/src/actions/threads.js:25:34
[task 2020-01-13T12:19:59.051Z] 12:19:59 INFO - thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45
[task 2020-01-13T12:19:59.051Z] 12:19:59 INFO - bindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:644:12
[task 2020-01-13T12:19:59.051Z] 12:19:59 INFO - threadListChanged@resource://devtools/client/debugger/src/client/firefox/events.js:142:11
[task 2020-01-13T12:19:59.051Z] 12:19:59 INFO - emit@resource://devtools/shared/event-emitter.js:195:24
[task 2020-01-13T12:19:59.051Z] 12:19:59 INFO - emit@resource://devtools/shared/event-emitter.js:276:18
[task 2020-01-13T12:19:59.051Z] 12:19:59 INFO - onPacket@resource://devtools/shared/protocol/Front.js:252:13
[task 2020-01-13T12:19:59.051Z] 12:19:59 INFO - onPacket@resource://devtools/shared/client/debugger-client.js:498:13
[task 2020-01-13T12:19:59.052Z] 12:19:59 INFO - send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2020-01-13T12:19:59.052Z] 12:19:59 INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22
[task 2020-01-13T12:19:59.052Z] 12:19:59 INFO - DevToolsUtils.executeSoonexports.executeSoon@resource://devtools/shared/DevToolsUtils.js:62:21
[task 2020-01-13T12:19:59.052Z] 12:19:59 INFO - send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2020-01-13T12:19:59.052Z] 12:19:59 INFO - send@resource://devtools/server/debugger-server-connection.js:91:20
[task 2020-01-13T12:19:59.052Z] 12:19:59 INFO - onWorkerListChanged@resource://devtools/server/actors/root.js:477:15
[task 2020-01-13T12:19:59.053Z] 12:19:59 INFO - _notifyListChanged@resource://devtools/server/actors/worker/worker-target-actor-list.js:184:10
[task 2020-01-13T12:19:59.053Z] 12:19:59 INFO - onUnregister@resource://devtools/server/actors/worker/worker-target-actor-list.js:200:12
[task 2020-01-13T12:19:59.053Z] 12:19:59 INFO - " {file: "resource://devtools/shared/protocol/Front.js" line: 68}]
[task 2020-01-13T12:19:59.053Z] 12:19:59 INFO - Buffered messages finished
[task 2020-01-13T12:19:59.054Z] 12:19:59 INFO - TEST-UNEXPECTED-FAIL | devtools/client/framework/test/metrics/browser_metrics_debugger.js | A promise chain failed to handle a rejection: Connection closed, pending request to server0.conn0.child1/frameTarget1, type listWorkers failed
[task 2020-01-13T12:19:59.054Z] 12:19:59 INFO -
[task 2020-01-13T12:19:59.054Z] 12:19:59 INFO - Request stack:
[task 2020-01-13T12:19:59.054Z] 12:19:59 INFO - request@resource://devtools/shared/protocol/Front.js:214:14
[task 2020-01-13T12:19:59.054Z] 12:19:59 INFO - generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:49:19
[task 2020-01-13T12:19:59.055Z] 12:19:59 INFO - listWorkerTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:90:36
[task 2020-01-13T12:19:59.055Z] 12:19:59 INFO - updateTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:173:25
[task 2020-01-13T12:19:59.055Z] 12:19:59 INFO - fetchThreads@resource://devtools/client/debugger/src/client/firefox/commands.js:458:36
[task 2020-01-13T12:19:59.055Z] 12:19:59 INFO - updateThreads/<@resource://devtools/client/debugger/src/actions/threads.js:25:34
[task 2020-01-13T12:19:59.055Z] 12:19:59 INFO - thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45
[task 2020-01-13T12:19:59.055Z] 12:19:59 INFO - bindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:644:12
[task 2020-01-13T12:19:59.056Z] 12:19:59 INFO - threadListChanged@resource://devtools/client/debugger/src/client/firefox/events.js:142:11
[task 2020-01-13T12:19:59.056Z] 12:19:59 INFO - emit@resource://devtools/shared/event-emitter.js:195:24
[task 2020-01-13T12:19:59.056Z] 12:19:59 INFO - emit@resource://devtools/shared/event-emitter.js:276:18
[task 2020-01-13T12:19:59.056Z] 12:19:59 INFO - onPacket@resource://devtools/shared/protocol/Front.js:252:13
[task 2020-01-13T12:19:59.056Z] 12:19:59 INFO - onPacket@resource://devtools/shared/client/debugger-client.js:498:13
[task 2020-01-13T12:19:59.056Z] 12:19:59 INFO - send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2020-01-13T12:19:59.056Z] 12:19:59 INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22
[task 2020-01-13T12:19:59.057Z] 12:19:59 INFO - DevToolsUtils.executeSoonexports.executeSoon@resource://devtools/shared/DevToolsUtils.js:62:21
[task 2020-01-13T12:19:59.057Z] 12:19:59 INFO - send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2020-01-13T12:19:59.057Z] 12:19:59 INFO - send@resource://devtools/server/debugger-server-connection.js:91:20
[task 2020-01-13T12:19:59.057Z] 12:19:59 INFO - onWorkerListChanged@resource://devtools/server/actors/root.js:477:15
[task 2020-01-13T12:19:59.057Z] 12:19:59 INFO - _notifyListChanged@resource://devtools/server/actors/worker/worker-target-actor-list.js:184:10
[task 2020-01-13T12:19:59.057Z] 12:19:59 INFO - onUnregister@resource://devtools/server/actors/worker/worker-target-actor-list.js:200:12
[task 2020-01-13T12:19:59.057Z] 12:19:59 INFO - - stack: destroy@resource://devtools/shared/protocol/Front.js:68:23
[task 2020-01-13T12:19:59.057Z] 12:19:59 INFO - _destroyTarget@resource://devtools/shared/fronts/targets/target-mixin.js:479:13
[task 2020-01-13T12:19:59.058Z] 12:19:59 INFO - asyncdestroy@resource://devtools/shared/fronts/targets/target-mixin.js:433:12
[task 2020-01-13T12:19:59.058Z] 12:19:59 INFO - destroy@resource://devtools/shared/fronts/targets/browsing-context.js:154:27
[task 2020-01-13T12:19:59.058Z] 12:19:59 INFO - _destroyToolbox/onceDestroyed</<@resource://devtools/client/framework/toolbox.js:3723:32
[task 2020-01-13T12:19:59.058Z] 12:19:59 INFO - promise callback*_destroyToolbox/onceDestroyed<@resource://devtools/client/framework/toolbox.js:3688:12
[task 2020-01-13T12:19:59.058Z] 12:19:59 INFO - _destroyToolbox@resource://devtools/client/framework/toolbox.js:3684:27
[task 2020-01-13T12:19:59.058Z] 12:19:59 INFO - destroy@resource://devtools/client/framework/toolbox.js:3559:10
[task 2020-01-13T12:19:59.058Z] 12:19:59 INFO - closeToolbox@resource://devtools/client/framework/devtools.js:657:19
[task 2020-01-13T12:19:59.059Z] 12:19:59 INFO - asynccloseTabAndToolbox@chrome://mochitests/content/browser/devtools/client/shared/test/shared-head.js:518:23
[task 2020-01-13T12:19:59.059Z] 12:19:59 INFO - asynccleanup@chrome://mochitests/content/browser/devtools/client/shared/test/shared-head.js:160:11
[task 2020-01-13T12:19:59.059Z] 12:19:59 INFO - nextTest@chrome://mochikit/content/browser-test.js:570:35
[task 2020-01-13T12:19:59.059Z] 12:19:59 INFO - async*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1457:25
[task 2020-01-13T12:19:59.059Z] 12:19:59 INFO - run@chrome://mochikit/content/browser-test.js:1372:9
[task 2020-01-13T12:19:59.059Z] 12:19:59 INFO - Rejection date: Mon Jan 13 2020 12:19:58 GMT+0000 (Coordinated Universal Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 265
[task 2020-01-13T12:19:59.059Z] 12:19:59 INFO - Stack trace:
[task 2020-01-13T12:19:59.059Z] 12:19:59 INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:265
[task 2020-01-13T12:19:59.060Z] 12:19:59 INFO - chrome://mochikit/content/browser-test.js:nextTest:624
[task 2020-01-13T12:19:59.060Z] 12:19:59 INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1457
[task 2020-01-13T12:19:59.060Z] 12:19:59 INFO - chrome://mochikit/content/browser-test.js:run:1372
[task 2020-01-13T12:19:59.060Z] 12:19:59 INFO - GECKO(2270) | MEMORY STAT vsizeMaxContiguous not supported in this build configuration.
[task 2020-01-13T12:19:59.060Z] 12:19:59 INFO - GECKO(2270) | MEMORY STAT | vsize 2944MB | residentFast 364MB | heapAllocated 132MB
[task 2020-01-13T12:19:59.061Z] 12:19:59 INFO - TEST-OK | devtools/client/framework/test/metrics/browser_metrics_debugger.js | took 2155ms

Comment 1

[Intermittent Failures Robot]

1 failures in 3773 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• linux64-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1608804&startday=2020-01-13&endday=2020-01-19&tree=all

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit auto_nag documentation.

Comment 3

[Bogdan Tara[:bogdan_tara | bogdant]]

This is still happening.

Recent failure: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=299481402&repo=autoland&lineNumber=1981

...
[task 2020-04-26T20:14:36.668Z] 20:14:36     INFO - TEST-PASS | devtools/client/framework/test/metrics/browser_metrics_debugger.js | Successfully recorded char count for debugger - 
[task 2020-04-26T20:14:36.669Z] 20:14:36     INFO - Percentage of vendored chars for debugger: 61.9%
[task 2020-04-26T20:14:36.670Z] 20:14:36     INFO - Leaving test bound 
[task 2020-04-26T20:14:36.917Z] 20:14:36     INFO - Removing tab.
[task 2020-04-26T20:14:36.917Z] 20:14:36     INFO - Waiting for event: 'TabClose' on [object XULElement].
[task 2020-04-26T20:14:36.925Z] 20:14:36     INFO - Got event: 'TabClose' on [object XULElement].
[task 2020-04-26T20:14:36.933Z] 20:14:36     INFO - Tab removed and finished closing
[task 2020-04-26T20:14:36.945Z] 20:14:36     INFO - GECKO(2072) | JavaScript error: resource://devtools/shared/protocol/Front.js, line 77: Error: Connection closed, pending request to server0.conn0.child2/frameTarget1, type listWorkers failed
[task 2020-04-26T20:14:36.945Z] 20:14:36     INFO - GECKO(2072) | Request stack:
[task 2020-04-26T20:14:36.945Z] 20:14:36     INFO - GECKO(2072) | request@resource://devtools/shared/protocol/Front.js:256:14
[task 2020-04-26T20:14:36.947Z] 20:14:36     INFO - GECKO(2072) | generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:47:19
[task 2020-04-26T20:14:36.947Z] 20:14:36     INFO - GECKO(2072) | listWorkerTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:93:36
[task 2020-04-26T20:14:36.948Z] 20:14:36     INFO - GECKO(2072) | updateTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:175:25
[task 2020-04-26T20:14:36.948Z] 20:14:36     INFO - GECKO(2072) | fetchThreads@resource://devtools/client/debugger/src/client/firefox/commands.js:432:36
[task 2020-04-26T20:14:36.948Z] 20:14:36     INFO - GECKO(2072) | updateThreads/<@resource://devtools/client/debugger/src/actions/threads.js:25:34
[task 2020-04-26T20:14:36.949Z] 20:14:36     INFO - GECKO(2072) | thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45
[task 2020-04-26T20:14:36.949Z] 20:14:36     INFO - GECKO(2072) | bindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:520:12
[task 2020-04-26T20:14:36.952Z] 20:14:36     INFO - GECKO(2072) | threadListChanged@resource://devtools/client/debugger/src/client/firefox/events.js:143:11
[task 2020-04-26T20:14:36.953Z] 20:14:36     INFO - GECKO(2072) | _emit@resource://devtools/shared/event-emitter.js:226:34
[task 2020-04-26T20:14:36.953Z] 20:14:36     INFO - GECKO(2072) | emit@resource://devtools/shared/event-emitter.js:172:18
[task 2020-04-26T20:14:36.953Z] 20:14:36     INFO - GECKO(2072) | emit@resource://devtools/shared/event-emitter.js:324:18
[task 2020-04-26T20:14:36.953Z] 20:14:36     INFO - GECKO(2072) | onPacket@resource://devtools/shared/protocol/Front.js:294:13
[task 2020-04-26T20:14:36.954Z] 20:14:36     INFO - GECKO(2072) | onPacket@resource://devtools/client/devtools-client.js:493:13
[task 2020-04-26T20:14:36.954Z] 20:14:36     INFO - GECKO(2072) | send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2020-04-26T20:14:36.955Z] 20:14:36     INFO - GECKO(2072) | exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22
[task 2020-04-26T20:14:36.961Z] 20:14:36     INFO - GECKO(2072) | DevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:47:21
[task 2020-04-26T20:14:36.961Z] 20:14:36     INFO - GECKO(2072) | send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2020-04-26T20:14:36.962Z] 20:14:36     INFO - GECKO(2072) | send@resource://devtools/server/devtools-server-connection.js:91:20
[task 2020-04-26T20:14:36.962Z] 20:14:36     INFO - GECKO(2072) | onWorkerListChanged@resource://devtools/server/actors/root.js:450:15
[task 2020-04-26T20:14:36.962Z] 20:14:36     INFO - GECKO(2072) | _notifyListChanged@resource://devtools/server/actors/worker/worker-target-actor-list.js:184:10
[task 2020-04-26T20:14:36.962Z] 20:14:36     INFO - GECKO(2072) | onUnregister@resource://devtools/server/actors/worker/worker-target-actor-list.js:200:12
[task 2020-04-26T20:14:36.963Z] 20:14:36     INFO - TEST-PASS | devtools/client/framework/test/metrics/browser_metrics_debugger.js | The main process DevToolsServer has no pending connection when the test ends - 
[task 2020-04-26T20:14:36.988Z] 20:14:36     INFO - TEST-INFO | started process screentopng
[task 2020-04-26T20:14:37.474Z] 20:14:37     INFO - TEST-INFO | screentopng: exit 0
[task 2020-04-26T20:14:37.474Z] 20:14:37     INFO - Buffered messages logged at 20:14:36
[task 2020-04-26T20:14:37.476Z] 20:14:37     INFO - Console message: [JavaScript Error: "Error: Connection closed, pending request to server0.conn0.child2/frameTarget1, type listWorkers failed
[task 2020-04-26T20:14:37.477Z] 20:14:37     INFO - 
[task 2020-04-26T20:14:37.477Z] 20:14:37     INFO - Request stack:
[task 2020-04-26T20:14:37.477Z] 20:14:37     INFO - request@resource://devtools/shared/protocol/Front.js:256:14
[task 2020-04-26T20:14:37.478Z] 20:14:37     INFO - generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:47:19
[task 2020-04-26T20:14:37.479Z] 20:14:37     INFO - listWorkerTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:93:36
[task 2020-04-26T20:14:37.479Z] 20:14:37     INFO - updateTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:175:25
[task 2020-04-26T20:14:37.480Z] 20:14:37     INFO - fetchThreads@resource://devtools/client/debugger/src/client/firefox/commands.js:432:36
[task 2020-04-26T20:14:37.480Z] 20:14:37     INFO - updateThreads/<@resource://devtools/client/debugger/src/actions/threads.js:25:34
[task 2020-04-26T20:14:37.480Z] 20:14:37     INFO - thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45
[task 2020-04-26T20:14:37.481Z] 20:14:37     INFO - bindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:520:12
[task 2020-04-26T20:14:37.481Z] 20:14:37     INFO - threadListChanged@resource://devtools/client/debugger/src/client/firefox/events.js:143:11
[task 2020-04-26T20:14:37.482Z] 20:14:37     INFO - _emit@resource://devtools/shared/event-emitter.js:226:34
[task 2020-04-26T20:14:37.482Z] 20:14:37     INFO - emit@resource://devtools/shared/event-emitter.js:172:18
[task 2020-04-26T20:14:37.482Z] 20:14:37     INFO - emit@resource://devtools/shared/event-emitter.js:324:18
[task 2020-04-26T20:14:37.482Z] 20:14:37     INFO - onPacket@resource://devtools/shared/protocol/Front.js:294:13
[task 2020-04-26T20:14:37.483Z] 20:14:37     INFO - onPacket@resource://devtools/client/devtools-client.js:493:13
[task 2020-04-26T20:14:37.483Z] 20:14:37     INFO - send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2020-04-26T20:14:37.484Z] 20:14:37     INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22
[task 2020-04-26T20:14:37.484Z] 20:14:37     INFO - DevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:47:21
[task 2020-04-26T20:14:37.485Z] 20:14:37     INFO - send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2020-04-26T20:14:37.485Z] 20:14:37     INFO - send@resource://devtools/server/devtools-server-connection.js:91:20
[task 2020-04-26T20:14:37.485Z] 20:14:37     INFO - onWorkerListChanged@resource://devtools/server/actors/root.js:450:15
[task 2020-04-26T20:14:37.485Z] 20:14:37     INFO - _notifyListChanged@resource://devtools/server/actors/worker/worker-target-actor-list.js:184:10
[task 2020-04-26T20:14:37.486Z] 20:14:37     INFO - onUnregister@resource://devtools/server/actors/worker/worker-target-actor-list.js:200:12
[task 2020-04-26T20:14:37.486Z] 20:14:37     INFO - " {file: "resource://devtools/shared/protocol/Front.js" line: 77}]
[task 2020-04-26T20:14:37.486Z] 20:14:37     INFO - Buffered messages finished
[task 2020-04-26T20:14:37.487Z] 20:14:37     INFO - TEST-UNEXPECTED-FAIL | devtools/client/framework/test/metrics/browser_metrics_debugger.js | A promise chain failed to handle a rejection: Connection closed, pending request to server0.conn0.child2/frameTarget1, type listWorkers failed
[task 2020-04-26T20:14:37.490Z] 20:14:37     INFO - 
[task 2020-04-26T20:14:37.490Z] 20:14:37     INFO - Request stack:
[task 2020-04-26T20:14:37.490Z] 20:14:37     INFO - request@resource://devtools/shared/protocol/Front.js:256:14
[task 2020-04-26T20:14:37.491Z] 20:14:37     INFO - generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:47:19
[task 2020-04-26T20:14:37.491Z] 20:14:37     INFO - listWorkerTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:93:36
[task 2020-04-26T20:14:37.491Z] 20:14:37     INFO - updateTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:175:25
[task 2020-04-26T20:14:37.491Z] 20:14:37     INFO - fetchThreads@resource://devtools/client/debugger/src/client/firefox/commands.js:432:36
...

Comment 4

[Intermittent Failures Robot]

1 failures in 5582 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• linux1804-64-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1608804&startday=2020-04-20&endday=2020-04-26&tree=all

Comment 6

[Intermittent Failures Robot]

4 failures in 5423 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 2
• autoland: 1
• mozilla-central: 1

Platform breakdown:

• linux1804-64-shippable: 3
• linux1804-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1608804&startday=2020-04-27&endday=2020-05-03&tree=all

Comment 7

[Intermittent Failures Robot]

2 failures in 5488 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 2

Platform breakdown:

• linux1804-64: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1608804&startday=2020-05-11&endday=2020-05-17&tree=all