Comment 4 for bug 1582992

So I can't really reproduce this, but looking at the backtrace it seems like more pythong2->python3 troubles:

Could you try modifying the following file:
/usr/lib/python3/dist-packages/apport/hookutils.py

Change line 716 to the following:

    for match in re.findall(aa_re, report.get('KernLog', '').decode('utf-8') + report.get('AuditLog', '').decode('utf-8')):

This is completely untested, but if it solves the issue I think the fix is in apport instead of the libvirt apport hook.