Comment 2 for bug 1625221

It seems it happens only with neutron jobs.

http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3Aeventlet.timeout.Timeout

If test runners are killed with unhandled exceptions, I'd expect testr_result or testrepository.subunit.gz to be corrupted, which doesn't seem to be the case.
That leaves big wtf??? in my mind. ;)