Bug: Intermittent browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | Uncaught exception - at resource://testing-common/NimbusTestUtils.jsm:150 - Error: Manager store not ready, call `manager.onStartup`
Status: RESOLVED
Priority: P5
Resolution: FIXED
Created: 2021-05-17 13:48:30+00:00
Resolved: 2021-06-08 21:59:59+00:00

**Filed by:** dluca [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=339900706&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/D6eHRZnyQlCzYpffg_H-4g/runs/0/artifacts/public/logs/live_backing.log

---
```
INFO - TEST-START | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js
[task 2021-05-17T13:18:08.531Z] 13:18:08     INFO - GECKO(1570) | console.log: "enroll" "mochitest-privatebrowsing-info"
[task 2021-05-17T13:18:08.537Z] 13:18:08     INFO - TEST-INFO | started process screentopng
[task 2021-05-17T13:18:08.908Z] 13:18:08     INFO - TEST-INFO | screentopng: exit 0
[task 2021-05-17T13:18:08.909Z] 13:18:08     INFO - Buffered messages logged at 13:18:08
[task 2021-05-17T13:18:08.909Z] 13:18:08     INFO - TEST-PASS | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | Sanity check the temporary file doesn't exist. - true == true - 
[task 2021-05-17T13:18:08.910Z] 13:18:08     INFO - Entering test bound test_experiment_plain_text
[task 2021-05-17T13:18:08.911Z] 13:18:08     INFO - Buffered messages finished
[task 2021-05-17T13:18:08.913Z] 13:18:08     INFO - TEST-UNEXPECTED-FAIL | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | Uncaught exception - at resource://testing-common/NimbusTestUtils.jsm:150 - Error: Manager store not ready, call `manager.onStartup`
[task 2021-05-17T13:18:08.913Z] 13:18:08     INFO - Stack trace:
[task 2021-05-17T13:18:08.913Z] 13:18:08     INFO - enrollmentHelper@resource://testing-common/NimbusTestUtils.jsm:150:15
[task 2021-05-17T13:18:08.913Z] 13:18:08     INFO - enrollWithFeatureConfig@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:43:23
[task 2021-05-17T13:18:08.913Z] 13:18:08     INFO - test_experiment_plain_text@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:82:39
[task 2021-05-17T13:18:08.914Z] 13:18:08     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1089:34
[task 2021-05-17T13:18:08.914Z] 13:18:08     INFO - Tester_execTest@chrome://mochikit/content/browser-test.js:1129:11
[task 2021-05-17T13:18:08.914Z] 13:18:08     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:946:14
[task 2021-05-17T13:18:08.914Z] 13:18:08     INFO - SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1037:23
[task 2021-05-17T13:18:08.914Z] 13:18:08     INFO - Leaving test bound test_experiment_plain_text
[task 2021-05-17T13:18:08.916Z] 13:18:08     INFO - Entering test bound test_experiment_fluent
[task 2021-05-17T13:18:08.917Z] 13:18:08     INFO - GECKO(1570) | console.log: "enroll" "mochitest-privatebrowsing-info"
[task 2021-05-17T13:18:08.917Z] 13:18:08     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-17T13:18:08.923Z] 13:18:08     INFO - TEST-UNEXPECTED-FAIL | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | Uncaught exception - at resource://testing-common/NimbusTestUtils.jsm:150 - Error: Manager store not ready, call `manager.onStartup`
[task 2021-05-17T13:18:08.923Z] 13:18:08     INFO - Stack trace:
[task 2021-05-17T13:18:08.923Z] 13:18:08     INFO - enrollmentHelper@resource://testing-common/NimbusTestUtils.jsm:150:15
[task 2021-05-17T13:18:08.923Z] 13:18:08     INFO - enrollWithFeatureConfig@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:43:23
[task 2021-05-17T13:18:08.924Z] 13:18:08     INFO - test_experiment_fluent@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:125:39
[task 2021-05-17T13:18:08.924Z] 13:18:08     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1089:34
[task 2021-05-17T13:18:08.924Z] 13:18:08     INFO - Leaving test bound test_experiment_fluent
[task 2021-05-17T13:18:08.924Z] 13:18:08     INFO - Entering test bound test_experiment_info_disabled
[task 2021-05-17T13:18:08.925Z] 13:18:08     INFO - GECKO(1570) | console.log: "enroll" "mochitest-privatebrowsing-info"
[task 2021-05-17T13:18:08.925Z] 13:18:08     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-17T13:18:08.925Z] 13:18:08     INFO - TEST-UNEXPECTED-FAIL | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | Uncaught exception - at resource://testing-common/NimbusTestUtils.jsm:150 - Error: Manager store not ready, call `manager.onStartup`
[task 2021-05-17T13:18:08.925Z] 13:18:08     INFO - Stack trace:
[task 2021-05-17T13:18:08.925Z] 13:18:08     INFO - enrollmentHelper@resource://testing-common/NimbusTestUtils.jsm:150:15
[task 2021-05-17T13:18:08.926Z] 13:18:08     INFO - enrollWithFeatureConfig@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:43:23
[task 2021-05-17T13:18:08.926Z] 13:18:08     INFO - test_experiment_info_disabled@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:156:39
[task 2021-05-17T13:18:08.926Z] 13:18:08     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1089:34
[task 2021-05-17T13:18:08.926Z] 13:18:08     INFO - Leaving test bound test_experiment_info_disabled
[task 2021-05-17T13:18:08.926Z] 13:18:08     INFO - Entering test bound test_experiment_promo_disabled
[task 2021-05-17T13:18:08.926Z] 13:18:08     INFO - GECKO(1570) | console.log: "enroll" "mochitest-privatebrowsing-info"
[task 2021-05-17T13:18:08.927Z] 13:18:08     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-17T13:18:08.927Z] 13:18:08     INFO - TEST-UNEXPECTED-FAIL | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | Uncaught exception - at resource://testing-common/NimbusTestUtils.jsm:150 - Error: Manager store not ready, call `manager.onStartup`
[task 2021-05-17T13:18:08.927Z] 13:18:08     INFO - Stack trace:
[task 2021-05-17T13:18:08.927Z] 13:18:08     INFO - enrollmentHelper@resource://testing-common/NimbusTestUtils.jsm:150:15
[task 2021-05-17T13:18:08.927Z] 13:18:08     INFO - enrollWithFeatureConfig@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:43:23
[task 2021-05-17T13:18:08.927Z] 13:18:08     INFO - test_experiment_promo_disabled@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:175:39
[task 2021-05-17T13:18:08.928Z] 13:18:08     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1089:34
[task 2021-05-17T13:18:08.928Z] 13:18:08     INFO - Leaving test bound test_experiment_promo_disabled
[task 2021-05-17T13:18:08.928Z] 13:18:08     INFO - Entering test bound test_experiment_format_urls
[task 2021-05-17T13:18:08.929Z] 13:18:08     INFO - GECKO(1570) | console.log: "enroll" "mochitest-privatebrowsing-info"
[task 2021-05-17T13:18:08.929Z] 13:18:08     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-17T13:18:08.930Z] 13:18:08     INFO - TEST-UNEXPECTED-FAIL | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | Uncaught exception - at resource://testing-common/NimbusTestUtils.jsm:150 - Error: Manager store not ready, call `manager.onStartup`
[task 2021-05-17T13:18:08.930Z] 13:18:08     INFO - Stack trace:
[task 2021-05-17T13:18:08.931Z] 13:18:08     INFO - enrollmentHelper@resource://testing-common/NimbusTestUtils.jsm:150:15
[task 2021-05-17T13:18:08.931Z] 13:18:08     INFO - enrollWithFeatureConfig@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:43:23
[task 2021-05-17T13:18:08.932Z] 13:18:08     INFO - test_experiment_format_urls@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:195:39
[task 2021-05-17T13:18:08.932Z] 13:18:08     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1089:34
[task 2021-05-17T13:18:08.934Z] 13:18:08     INFO - Leaving test bound test_experiment_format_urls
[task 2021-05-17T13:18:08.935Z] 13:18:08     INFO - Entering test bound test_experiment_click_info_telemetry
[task 2021-05-17T13:18:08.936Z] 13:18:08     INFO - GECKO(1570) | console.log: "enroll" "mochitest-privatebrowsing-info"
[task 2021-05-17T13:18:08.936Z] 13:18:08     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-17T13:18:08.937Z] 13:18:08     INFO - TEST-UNEXPECTED-FAIL | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | Uncaught exception - at resource://testing-common/NimbusTestUtils.jsm:150 - Error: Manager store not ready, call `manager.onStartup`
[task 2021-05-17T13:18:08.937Z] 13:18:08     INFO - Stack trace:
[task 2021-05-17T13:18:08.938Z] 13:18:08     INFO - enrollmentHelper@resource://testing-common/NimbusTestUtils.jsm:150:15
[task 2021-05-17T13:18:08.938Z] 13:18:08     INFO - enrollWithFeatureConfig@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:43:23
[task 2021-05-17T13:18:08.939Z] 13:18:08     INFO - test_experiment_click_info_telemetry@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:220:39
[task 2021-05-17T13:18:08.939Z] 13:18:08     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1089:34
[task 2021-05-17T13:18:08.940Z] 13:18:08     INFO - Leaving test bound test_experiment_click_info_telemetry
[task 2021-05-17T13:18:08.941Z] 13:18:08     INFO - Entering test bound test_experiment_click_promo_telemetry
[task 2021-05-17T13:18:08.942Z] 13:18:08     INFO - GECKO(1570) | console.log: "enroll" "mochitest-privatebrowsing-info"
[task 2021-05-17T13:18:08.943Z] 13:18:08     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-17T13:18:08.944Z] 13:18:08     INFO - TEST-UNEXPECTED-FAIL | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | Uncaught exception - at resource://testing-common/NimbusTestUtils.jsm:150 - Error: Manager store not ready, call `manager.onStartup`
[task 2021-05-17T13:18:08.945Z] 13:18:08     INFO - Stack trace:
[task 2021-05-17T13:18:08.945Z] 13:18:08     INFO - enrollmentHelper@resource://testing-common/NimbusTestUtils.jsm:150:15
[task 2021-05-17T13:18:08.946Z] 13:18:08     INFO - enrollWithFeatureConfig@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:43:23
[task 2021-05-17T13:18:08.946Z] 13:18:08     INFO - test_experiment_click_promo_telemetry@chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js:245:39
[task 2021-05-17T13:18:08.947Z] 13:18:08     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1089:34
[task 2021-05-17T13:18:08.947Z] 13:18:08     INFO - Leaving test bound test_experiment_click_promo_telemetry
[task 2021-05-17T13:18:08.948Z] 13:18:08     INFO - GECKO(1570) | MEMORY STAT | vsize 20975446MB | residentFast 1150MB
[task 2021-05-17T13:18:08.948Z] 13:18:08     INFO - TEST-OK | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_about_nimbus.js | took 117ms```