plugins/npruntime/evaluate-js-destroying-plugin-from-destroy-stream.html was added in http://trac.webkit.org/changeset/78157
It has been failing on SnowLeaoprd Release (Tests) since being added.
The same revision seems to be some of WebKit2 plugin tests to crash or fail:
Tests where results did not match expected results:
plugins/npruntime/evaluate.html expected actual diff pretty diff
Tests that caused the Web process to crash:
I'm going to use this bug to track adding the test back.