Bug: Intermittent browser/base/content/test/tabs/browser_multiselect_tabs_copy_through_drag_and_drop.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-11-09 08:58:07+00:00
Resolved: 2024-05-27 12:02:24+00:00

**Filed by:** csabou [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=435554945&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/djcBkMwDTPWFA8ked3SvCg/runs/4/artifacts/public/logs/live_backing.log

---
```
[task 2023-11-09T04:58:57.943Z] 04:58:57     INFO - TEST-PASS | browser/base/content/test/tabs/browser_multiselect_tabs_copy_through_drag_and_drop.js | Tab1 and tab2 are duplicated succesfully - 
[task 2023-11-09T04:58:57.943Z] 04:58:57     INFO - Buffered messages logged at 04:58:55
[task 2023-11-09T04:58:57.944Z] 04:58:57     INFO - Leaving test bound test
[task 2023-11-09T04:58:57.948Z] 04:58:57     INFO - Buffered messages finished
[task 2023-11-09T04:58:57.960Z] 04:58:57     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_multiselect_tabs_copy_through_drag_and_drop.js | A promise chain failed to handle a rejection: Actor 'Conduits' destroyed before query 'RunListener' was resolved - stack: (No stack available.)
[task 2023-11-09T04:58:57.961Z] 04:58:57     INFO - Rejection date: Thu Nov 09 2023 04:58:56 GMT+0000 (Coordinated Universal Time) - false == true - {"filename":"resource://testing-common/PromiseTestUtils.sys.mjs","name":"assertNoUncaughtRejections","sourceId":585,"lineNumber":266,"columnNumber":14,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":550,"lineNumber":769,"columnNumber":29,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":550,"lineNumber":1797,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":550,"lineNumber":1717,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"nextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"assertNoUncaughtRejections@resource://testing-common/PromiseTestUtils.sys.mjs:266:14\nnextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}}
[task 2023-11-09T04:58:57.983Z] 04:58:57     INFO - Stack trace:
[task 2023-11-09T04:58:57.983Z] 04:58:57     INFO - resource://testing-common/PromiseTestUtils.sys.mjs:assertNoUncaughtRejections:266
[task 2023-11-09T04:58:57.983Z] 04:58:57     INFO - chrome://mochikit/content/browser-test.js:nextTest:769
[task 2023-11-09T04:58:57.983Z] 04:58:57     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1797
[task 2023-11-09T04:58:57.984Z] 04:58:57     INFO - chrome://mochikit/content/browser-test.js:run:1717
[task 2023-11-09T04:58:57.984Z] 04:58:57     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-11-09T04:58:57.987Z] 04:58:57     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_multiselect_tabs_copy_through_drag_and_drop.js | A promise chain failed to handle a rejection: Actor 'Conduits' destroyed before query 'RunListener' was resolved - stack: (No stack available.)
[task 2023-11-09T04:58:58.016Z] 04:58:57     INFO - Rejection date: Thu Nov 09 2023 04:58:56 GMT+0000 (Coordinated Universal Time) - false == true - {"filename":"resource://testing-common/PromiseTestUtils.sys.mjs","name":"assertNoUncaughtRejections","sourceId":585,"lineNumber":266,"columnNumber":14,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":550,"lineNumber":769,"columnNumber":29,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":550,"lineNumber":1797,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":550,"lineNumber":1717,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"nextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"assertNoUncaughtRejections@resource://testing-common/PromiseTestUtils.sys.mjs:266:14\nnextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}}
[task 2023-11-09T04:58:58.016Z] 04:58:58     INFO - Stack trace:
[task 2023-11-09T04:58:58.016Z] 04:58:58     INFO - resource://testing-common/PromiseTestUtils.sys.mjs:assertNoUncaughtRejections:266
[task 2023-11-09T04:58:58.016Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:nextTest:769
[task 2023-11-09T04:58:58.016Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1797
[task 2023-11-09T04:58:58.016Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:run:1717
[task 2023-11-09T04:58:58.017Z] 04:58:58     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-11-09T04:58:58.021Z] 04:58:58     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_multiselect_tabs_copy_through_drag_and_drop.js | A promise chain failed to handle a rejection: Actor 'Conduits' destroyed before query 'RunListener' was resolved - stack: (No stack available.)
[task 2023-11-09T04:58:58.040Z] 04:58:58     INFO - Rejection date: Thu Nov 09 2023 04:58:56 GMT+0000 (Coordinated Universal Time) - false == true - {"filename":"resource://testing-common/PromiseTestUtils.sys.mjs","name":"assertNoUncaughtRejections","sourceId":585,"lineNumber":266,"columnNumber":14,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":550,"lineNumber":769,"columnNumber":29,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":550,"lineNumber":1797,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":550,"lineNumber":1717,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"nextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"assertNoUncaughtRejections@resource://testing-common/PromiseTestUtils.sys.mjs:266:14\nnextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}}
[task 2023-11-09T04:58:58.040Z] 04:58:58     INFO - Stack trace:
[task 2023-11-09T04:58:58.040Z] 04:58:58     INFO - resource://testing-common/PromiseTestUtils.sys.mjs:assertNoUncaughtRejections:266
[task 2023-11-09T04:58:58.041Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:nextTest:769
[task 2023-11-09T04:58:58.041Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1797
[task 2023-11-09T04:58:58.041Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:run:1717
[task 2023-11-09T04:58:58.042Z] 04:58:58     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-11-09T04:58:58.058Z] 04:58:58     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_multiselect_tabs_copy_through_drag_and_drop.js | A promise chain failed to handle a rejection: Actor 'Conduits' destroyed before query 'RunListener' was resolved - stack: (No stack available.)
[task 2023-11-09T04:58:58.058Z] 04:58:58     INFO - Rejection date: Thu Nov 09 2023 04:58:56 GMT+0000 (Coordinated Universal Time) - false == true - {"filename":"resource://testing-common/PromiseTestUtils.sys.mjs","name":"assertNoUncaughtRejections","sourceId":585,"lineNumber":266,"columnNumber":14,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":550,"lineNumber":769,"columnNumber":29,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":550,"lineNumber":1797,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":550,"lineNumber":1717,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"nextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"assertNoUncaughtRejections@resource://testing-common/PromiseTestUtils.sys.mjs:266:14\nnextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}}
[task 2023-11-09T04:58:58.063Z] 04:58:58     INFO - Stack trace:
[task 2023-11-09T04:58:58.063Z] 04:58:58     INFO - resource://testing-common/PromiseTestUtils.sys.mjs:assertNoUncaughtRejections:266
[task 2023-11-09T04:58:58.063Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:nextTest:769
[task 2023-11-09T04:58:58.064Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1797
[task 2023-11-09T04:58:58.064Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:run:1717
[task 2023-11-09T04:58:58.076Z] 04:58:58     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-11-09T04:58:58.080Z] 04:58:58     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_multiselect_tabs_copy_through_drag_and_drop.js | A promise chain failed to handle a rejection: Actor 'Conduits' destroyed before query 'RunListener' was resolved - stack: (No stack available.)
[task 2023-11-09T04:58:58.080Z] 04:58:58     INFO - Rejection date: Thu Nov 09 2023 04:58:56 GMT+0000 (Coordinated Universal Time) - false == true - {"filename":"resource://testing-common/PromiseTestUtils.sys.mjs","name":"assertNoUncaughtRejections","sourceId":585,"lineNumber":266,"columnNumber":14,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":550,"lineNumber":769,"columnNumber":29,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":550,"lineNumber":1797,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":550,"lineNumber":1717,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"nextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"assertNoUncaughtRejections@resource://testing-common/PromiseTestUtils.sys.mjs:266:14\nnextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}}
[task 2023-11-09T04:58:58.081Z] 04:58:58     INFO - Stack trace:
[task 2023-11-09T04:58:58.100Z] 04:58:58     INFO - resource://testing-common/PromiseTestUtils.sys.mjs:assertNoUncaughtRejections:266
[task 2023-11-09T04:58:58.100Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:nextTest:769
[task 2023-11-09T04:58:58.100Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1797
[task 2023-11-09T04:58:58.100Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:run:1717
[task 2023-11-09T04:58:58.101Z] 04:58:58     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-11-09T04:58:58.106Z] 04:58:58     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_multiselect_tabs_copy_through_drag_and_drop.js | A promise chain failed to handle a rejection: Actor 'Conduits' destroyed before query 'RunListener' was resolved - stack: (No stack available.)
[task 2023-11-09T04:58:58.124Z] 04:58:58     INFO - Rejection date: Thu Nov 09 2023 04:58:56 GMT+0000 (Coordinated Universal Time) - false == true - {"filename":"resource://testing-common/PromiseTestUtils.sys.mjs","name":"assertNoUncaughtRejections","sourceId":585,"lineNumber":266,"columnNumber":14,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":550,"lineNumber":769,"columnNumber":29,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":550,"lineNumber":1797,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":550,"lineNumber":1717,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"nextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}},"formattedStack":"assertNoUncaughtRejections@resource://testing-common/PromiseTestUtils.sys.mjs:266:14\nnextTest@chrome://mochikit/content/browser-test.js:769:29\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1797:25\nrun@chrome://mochikit/content/browser-test.js:1717:9\n","nativeSavedFrame":{}}
[task 2023-11-09T04:58:58.124Z] 04:58:58     INFO - Stack trace:
[task 2023-11-09T04:58:58.125Z] 04:58:58     INFO - resource://testing-common/PromiseTestUtils.sys.mjs:assertNoUncaughtRejections:266
[task 2023-11-09T04:58:58.125Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:nextTest:769
[task 2023-11-09T04:58:58.125Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1797
[task 2023-11-09T04:58:58.126Z] 04:58:58     INFO - chrome://mochikit/content/browser-test.js:run:1717
[task 2023-11-09T04:58:58.132Z] 04:58:58     INFO - Not taking screenshot here: see the one that was previously logged
```