Filed by: abutkovits [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=390514987&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/TQ3T74C8T1KkVinyxhQsPA/runs/0/artifacts/public/logs/live_backing.log

[task 2022-09-14T23:46:47.115Z]  |###########################|  100%                             Time: 0:12:25 
[task 2022-09-14T23:46:47.115Z] ++ dirname /builds/worker/bin/get_and_diffoscope
[task 2022-09-14T23:46:47.116Z] + /builds/worker/bin/report_error diff
[task 2022-09-14T23:46:54.658Z] TEST-UNEXPECTED-FAIL | firefox/libxul.so differs. See the diff.html or diff.txt artifact
[task 2022-09-14T23:46:54.660Z] + fail
[task 2022-09-14T23:46:54.660Z] + exit 1
[taskcluster 2022-09-14 23:46:54.985Z] === Task Finished ===
[taskcluster 2022-09-14 23:47:05.849Z] Unsuccessful task run with exit code: 1 completed in 1016.271 seconds

The Bugbug bot thinks this bug should belong to the 'Firefox Build System::Task Configuration' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

This looks like a perma failure, Stransky can you please take a look at this? I think it might be caused by Bug 1792512.
https://treeherder.mozilla.org/jobs?repo=mozilla-central&group_state=expanded&fromchange=170f356185eb469b153bc62d1a203e66a25a8035&searchStr=diffoscope%2Copt%2Cdiff-reproducible-linux32%2Clinux32&selectedTaskRun=BhmoBgoiSnKjmem_jX4XPQ.4

I don't think it's caused by any code change there, especially not by Bug 1792512.

This seems to be perma again as seen here. Mike, is there any possibility it could be caused by Bug 1794520? Thank you!

Here it might be the same issue, I retrigg the build (build-linux-reproduced/opt) as you told us. Hope it will turn green. I will set it as Intermittent for now because I think it's the same issue.

It seems to still be intermittent. On that specific push, it seems the odd one was the linux-shippable/opt build, which means all the linux-reproducible/opt builds would differ from it except the intermittent odd one that would match it. On the next push, where I triggered others, we're back to "normal".

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
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