The tests sometimes fail [1]. I don't really know why. And the output should be adapted to be more useful, i.e. don't try to delete characters when the script is not on a tty. [1] https://public-artifacts.taskcluster.net/a_R267R8S-a643xR5nq5dg/0/public/logs/live_backing.log

We fixed two intermittent failures that were actual bugs and disabled the rest of the permanent failures to get the bogo suite landed. Follow-ups will be opened to enable tests on by one.