Filed by: malexandru [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=335557629&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/AmeXLkBVSgGaI191sgtiaQ/runs/0/artifacts/public/logs/live_backing.log

[task 2021-04-06T13:09:56.491Z] 13:09:56     INFO - TEST-OK | /html/semantics/scripting-1/the-script-element/module/error-and-slow-dependency.html | took 938ms
[task 2021-04-06T13:09:56.494Z] 13:09:56     INFO - TEST-START | /html/semantics/scripting-1/the-script-element/module/error-type-1.html
[task 2021-04-06T13:09:56.499Z] 13:09:56     INFO - Closing window 773
[task 2021-04-06T13:09:56.823Z] 13:09:56     INFO - 
[task 2021-04-06T13:09:56.823Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/dynamic-import/string-compilation-of-promise-result.html | Evaled the script via eval, successful import 
[task 2021-04-06T13:09:56.823Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/dynamic-import/string-compilation-of-promise-result.html | Evaled the script via eval, failed import 
[task 2021-04-06T13:09:56.823Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/dynamic-import/string-compilation-of-promise-result.html | Evaled the script via Function, successful import 
[task 2021-04-06T13:09:56.823Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/dynamic-import/string-compilation-of-promise-result.html | Evaled the script via Function, failed import 
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/dynamic-import/string-compilation-other-document.html | eval should successfully import 
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/dynamic-import/string-compilation-other-document.html | setTimeout should successfully import 
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/dynamic-import/string-compilation-other-document.html | the Function constructor should successfully import 
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/dynamic-import/string-compilation-other-document.html | reflected inline event handlers should successfully import 
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/dynamic-import/string-compilation-other-document.html | inline event handlers triggered by JS should successfully import 
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/module/error-and-slow-dependency.html | module graph with a syntax error should not evaulate but should not crash UA. 
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - TEST-UNEXPECTED-FAIL | /html/semantics/scripting-1/the-script-element/module/error-type-1.html | network error has higher priority than parse error - assert_equals: expected function "function SyntaxError() {
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO -     [native code]
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - }" but got function "function Number() {
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO -     [native code]
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - }"
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - @http://web-platform.test:8000/html/semantics/scripting-1/the-script-element/module/error-type-1.html:21:20
[task 2021-04-06T13:09:56.824Z] 13:09:56     INFO - Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2095:25
[task 2021-04-06T13:09:56.825Z] 13:09:56     INFO - Test.prototype.step_func_done/<@http://web-platform.test:8000/resources/testharness.js:2138:32
[task 2021-04-06T13:09:56.934Z] 13:09:56     INFO - TEST-OK | /html/semantics/scripting-1/the-script-element/module/error-type-1.html | took 440ms
[task 2021-04-06T13:09:57.295Z] 13:09:57     INFO - STDOUT: cleanup aborted: Unable to remount device
[task 2021-04-06T13:09:57.416Z] 13:09:57     INFO - STDOUT: cleanup aborted: Unable to remount device
[task 2021-04-06T13:09:57.418Z] 13:09:57     INFO - Closing logging queue
[task 2021-04-06T13:09:57.419Z] 13:09:57     INFO - queue closed
[task 2021-04-06T13:09:57.440Z] 13:09:57     INFO - Setting up ssl
[task 2021-04-06T13:09:57.462Z] 13:09:57     INFO - certutil | b''
[task 2021-04-06T13:09:57.491Z] 13:09:57     INFO - certutil | b''
[task 2021-04-06T13:09:57.513Z] 13:09:57     INFO - certutil | b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
[task 2021-04-06T13:09:58.402Z] 13:09:58     INFO - adb Granting important runtime permissions to org.mozilla.geckoview.test
[task 2021-04-06T13:09:59.706Z] 13:09:59     INFO - adb launch_application: am start -W -n org.mozilla.geckoview.test/org.mozilla.geckoview.test.TestRunnerActivity -a android.intent.action.MAIN --es env0 MOZ_CRASHREPORTER=1 --es env1 MOZ_CRASHREPORTER_NO_REPORT=1 --es env2 MOZ_CRASHREPORTER_SHUTDOWN=1 --es env3 MOZ_HIDE_RESULTS_TABLE=1 --es env4 MOZ_IN_AUTOMATION=1 --es env5 MOZ_LOG=signaling:3,mtransport:4,DataChannel:4,jsep:4 --es env6 R_LOG_LEVEL=6 --es env7 R_LOG_DESTINATION=stderr --es env8 R_LOG_VERBOSE=1 --es env9 MOZ_PROCESS_LOG=/tmp/tmpd8k96yaspidlog --es env10 MOZ_DISABLE_NONLOCAL_CONNECTIONS=1 --es env11 STYLO_THREADS=1 --es env12 MOZ_WEBRENDER=1 --es arg0 -no-remote --es arg1 -profile --es arg2 /data/local/tmp/test_root/profile --es arg3 --marionette --es arg4 about:blank --ez use_multiprocess True
[task 2021-04-06T13:10:00.592Z] 13:10:00     INFO - Starting runner
[task 2021-04-06T13:10:01.211Z] 13:10:01     INFO - TEST-START | /html/semantics/scripting-1/the-script-element/module/error-type-2.html```

Fixed by the backout of Bug 1681046.
(Backfill range)

Set release status flags based on info from the regressing bug 1681046