Backed out for causing py3 unit test failures Backout link: https://hg.mozilla.org/integration/autoland/rev/b7c51567545cbceac3798fa536245baf600b18d4 [Push with failures](https://treeherder.mozilla.org/jobs?repo=autoland&group_state=expanded&selectedTaskRun=Hg8BQKiNS2iunvtlDzR3EQ.0&searchStr=linux%2C18.04%2Cx64%2Cdebug%2Cpython%2C3%2Cunit%2Ctests%2Csource-test-python-mochitest-harness-linux1804-64%2Fdebug%2Cmch&revision=ad37a0c0652604ce33e5f5f6048ec3ff5ed4eca6) [Failure log -> testing/mochitest/tests/python/test_mochitest_integration.py::test_output_extra_args[plain-mochitest-args.ini] TEST-UNEXPECTED-FAIL](https://treeherder.mozilla.org/logviewer?job_id=454597503&repo=autoland&lineNumber=289)
Bug 1884401 Comment 13 Edit History
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Backed out for causing py3 unit test failures Backout link: https://hg.mozilla.org/integration/autoland/rev/b7c51567545cbceac3798fa536245baf600b18d4 [Push with failures](https://treeherder.mozilla.org/jobs?repo=autoland&group_state=expanded&selectedTaskRun=Hg8BQKiNS2iunvtlDzR3EQ.0&searchStr=linux%2C18.04%2Cx64%2Cdebug%2Cpython%2C3%2Cunit%2Ctests%2Csource-test-python-mochitest-harness-linux1804-64%2Fdebug%2Cmch&revision=ad37a0c0652604ce33e5f5f6048ec3ff5ed4eca6) [Failure log -> testing/mochitest/tests/python/test_mochitest_integration.py::test_output_extra_args[plain-mochitest-args.ini] TEST-UNEXPECTED-FAIL](https://treeherder.mozilla.org/logviewer?job_id=454597503&repo=autoland&lineNumber=289) L.E Also these [perftest failures](https://treeherder.mozilla.org/jobs?repo=autoland&resultStatus=pending%2Crunning%2Ctestfailed%2Cbusted%2Cexception&tochange=d49ecc17e4ae83fbccee8ffbe50a119039d1e408&fromchange=d49ecc17e4ae83fbccee8ffbe50a119039d1e408&searchStr=perftest&selectedTaskRun=EXf-1QR2QGmMm9TRA_4ULQ.0)