Hello,
Back in June, I have added REL1_18 to the continuous integration test suite. To make it works, I had to disable the 'Database' test group which was severely broken at the time.
Demon fixed the Database group slowness with r88755. I have backported it in REL1_18 together with other test fixes (see commit message).
The backport revision is r92239 [2]. I have run the tests on CC for this revision WITHOUT the Database group. Then I enabled the Database group and triggered a build manually. End result:
The GOOD: CC is now really running tests for 1.18 (including parser)
The BAD: 1.18 is greatly broken (robla will make us fix it)
The Weird: my commit (r92239) is not the root cause :-))
From a quick look, broken tests are related to the Block rewrite, some weird Api breakages and parser tests fix that need backports.
[1] http://ci.tesla.usability.wikimedia.org/cruisecontrol/ [2] http://www.mediawiki.org/wiki/Special:Code/MediaWiki/92239