Tagging failed when trying to push to hg because the path to the ssh key was wrong due to the mock switch. This patch was landed and buildbot-configs was retagged to fix: https://bug815763.bugzilla.mozilla.org/attachment.cgi?id=698068. After that, rebuilt the tagging builder. After it completed, forced source, en-US builds, and bouncer submitter (because tagging downstreams don't fire correctly after a rebuild.
Because of rebuilding tag instead of re-doing sendchanges, all repacks are failing because "script_repo_revision" isn't set. These can be fixed by forcing the failed builders and setting a "script_repo_revision" property to the release tag (eg, FIREFOX_18_0_RELEASE). I've done this for all failed repacks that I've seen. (Though, some have additional problems, see below for details).
=== Win32 build failed ===
Win32 build failed with what looks like a path-length-too-long problem ("bad file number"). I couldn't figure out what to shorten in the directory path that didn't seem incredibly risky to do. Not sure what to do here. FIXME