Jamo and I have been debugging these failures. One of the first issues was that hypervisors were not coming up, that has been addressed with this patch [1].
The next issue was the vm ip value was the neutron subnet uuid, caused by some test script code not working properly. Testing this patch [2] now.
And finally, a link to the sandbox job [3].
Venkat,
I know you have also been looking into these, wanted to share this with you. We're getting closer....
Jamo,
Thanks for all the help debugging and pushing patches for these issues!