stage: hanging jobs

[Kamil Paral]

I noticed today that we have about 50 queued x86_64/noarch depchecks on our staging
server. The problem was in this job:

http://autoqa-stg.fedoraproject.org/results/2335-autotest/virt27.qa/debug/

It was hanging for two days in the "running" state. This seems like an autotest
problem, it should detect when connection times out and it should abort the job
automatically. (But now I'm not sure if we didn't make some adjustments the
autotest's watchdog timer, we need to investigate).

I aborted the hanging job and all but the last two depchecks.

If this happens again we should investigate and report to autotest devs.