I did some [retriggers](https://treeherder.mozilla.org/jobs?repo=autoland&group_state=expanded&selectedTaskRun=Wz00relNRISgKnUbuH2NEQ.0&resultStatus=success%2Ctestfailed%2Cbusted%2Cexception%2Crunnable&revision=6e58ee022ce04f0d820bd6ab534e8577e4d180fb&searchStr=mac%2Cmochitest) and it seems they turned green Will reland the your patch and sorry for the inconvenience
Bug 1949298 Comment 8 Edit History
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I did some [retriggers](https://treeherder.mozilla.org/jobs?repo=autoland&group_state=expanded&selectedTaskRun=Wz00relNRISgKnUbuH2NEQ.0&resultStatus=success%2Ctestfailed%2Cbusted%2Cexception%2Crunnable&revision=6e58ee022ce04f0d820bd6ab534e8577e4d180fb&searchStr=mac%2Cmochitest) and it seems they turned green Will reland your patch and sorry for the inconvenience