webanimations/css-animation-effect-target-change-and-animation-removal-crash.html [ ImageOnlyFailure ] I'm not sure this is a fail of the test or a fail in the way we compare the test results. This reftest seems to compare a page that's expected to cause a crash with an empty page, and fails in the comparison, maybe because we don't support an empty page. Seems that the bot is not able to generate the result or the diff images.
This is pretty much the same as in https://bugs.webkit.org/show_bug.cgi?id=171058 . Replacing the empty file with a 1 byte file makes the test pass.
Created attachment 365012 [details] Patch
Committed r243061: <https://trac.webkit.org/changeset/243061>