I've completed phase 2 of the testbot: besides (32 and 64 bit) Windows executables you can now also submit patch files to the bot. The bot will apply the patch files to a clean git tree, cross-compile the test and run the test on Windows VMs. You'll also be able to download the cross-compiled test executable to test it on different Windows machines.
I've had to reverse this change for now as it causes major problems.
Fixed the problem (race condition which didn't show up on my uniprocessor test system but became very visible on the multiprocessor production system) and reinstated the change. You can submit patches to the bot again.
Ge.