Comment 1 for bug 1815774

The retracers do not treat this as a failure because apport returns 0 when retracing the crash and that's because gdb also returns 0 as I believe this is just a warning from gdb. That being said there is no record of this failure in the retracers and it would not have been noticed if not for seb128, so there is some room for improvement in how the retracers / apport handle this situation.