TestWebKitAPI._WKDownload.DownloadMonitorCancel seems flaky on macOS. In https://ews-build.webkit.org/#/builders/3/builds/2371 it failed in run-api-test step, but in immediately next retry it passed. Similar thing happened in: https://ews-build.webkit.org/#/builders/3/builds/2378 https://ews-build.webkit.org/#/builders/3/builds/2379 https://ews-build.webkit.org/#/builders/3/builds/2381 It seems very flaky on following builds: https://ews-build.webkit.org/#/builders/3/builds/2354 https://ews-build.webkit.org/#/builders/3/builds/2364 https://ews-build.webkit.org/#/builders/3/builds/2370 https://ews-build.webkit.org/#/builders/3/builds/2375 https://ews-build.webkit.org/#/builders/3/builds/2377 https://ews-build.webkit.org/#/builders/3/builds/2385 https://ews-build.webkit.org/#/builders/3/builds/2391 https://ews-build.webkit.org/#/builders/3/builds/2394 First occurrence: https://ews-build.webkit.org/#/builders/3/builds/2350
> First occurrence: https://ews-build.webkit.org/#/builders/3/builds/2350 Maybe it was introduced in this build only (in https://bugs.webkit.org/show_bug.cgi?id=198222), but not reported by EWS due to https://bugs.webkit.org/show_bug.cgi?id=198289
I filed https://bugs.webkit.org/show_bug.cgi?id=198298 this morning. Theres 3 tests in total with flaky behavior. We first started seeing them on the testers after r245756 , but I cannot reproduce the flakiness locally, so I cannot verify which caused them 100%.