imported/blink/fast/css/first-letter-crash-document-disposal.html has beeing crashing sometimes. Regression caused probably in r243755:r243763 https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r244109%20(10214)/imported/blink/fast/css/first-letter-crash-document-disposal-crash-log.txt
stderr: GDBus.Error:org.freedesktop.DBus.Error.Spawn.FileInvalid: Cannot do system-bus activation with no user GDBus.Error:org.freedesktop.DBus.Error.Spawn.FileInvalid: Cannot do system-bus activation with no user (WebKitTestRunner:83843): Gtk-CRITICAL **: 03:37:10.862: gtk_print_settings_to_key_file: assertion 'GTK_IS_PRINT_SETTINGS (settings)' failed
Fixed by r292819. Test expectations updated in https://trac.webkit.org/changeset/294140/webkit.