We are planning to upgrade build.webkit.org to latest Buildbot. ExtractTestResults step uses few things which behaves differently in new buildbot (e.g.: self.build.getProperties().render() returns deferred instead of string). We should update the step accordingly.
Created attachment 413708 [details] Patch
Committed r269633: <https://trac.webkit.org/changeset/269633> All reviewed patches have been landed. Closing bug and clearing flags on attachment 413708 [details].
<rdar://problem/71246754>
Reopening to attach new patch.
Created attachment 414343 [details] Patch
Follow-up patch to fix this issue with old Buildbot: https://build.webkit.org/builders/Apple-Mojave-Release-WK1-Tests/builds/19509/steps/extract-test-results/logs/err.text
Committed r269904: <https://trac.webkit.org/changeset/269904> All reviewed patches have been landed. Closing bug and clearing flags on attachment 414343 [details].