Hi,
With a lot of help from the folks in ops (special thanks to Rob, Daniel and Ryan), we've gotten the new continuous integration server up and running!
Right now, it's only running Jenkins (PHPUnit), but we should have TestSwarm going in the very near future. The URL for all things testing is now:
http://integration.mediawiki.org
We've had a few bumps in the last ~48 hours in making sure all the tests are consistently passing, but we've ironed out most of the issues by now and I think we can begin relying on its output. The 'mw-jenkinsbot' bot in #mediawiki will continue to report failures and such to IRC for us. I've also created a new Bugzilla component--Wikimedia -> Continuous Integration--so feel free to file bugs if you find issues with the new server (issues with the tests themselves should be filed in MediaWiki -> Unit testing).
Some (lots) of documentation on mw.org is probably out of date now and links will probably need updating, so if you come across any please go ahead and fix them.
Thanks everyone for your help in getting this up and running, and welcome everyone to our glorious new testing future.
-Chad
PS: The CruiseControl instance has been shut down completely (ci.tesla), and the test Jenkins instance (ci2.tesla) will be shut down in a few days when I'm confident we've fixed any remaining issues. Please update any bookmarks you may have.