I recently had a series of system crashes due to faulty hardware. It appears that my captus.log has been corrupted each time. When I try to run arbtt-stats on it, it will fail with these messages at some point.
I believe there should be further correct entries at the end of the log, at least I hope there are more entries after the faulty section. My problem is, that I noticed the problem a few days later, when I ran arbtt-stats. The capture itself seemed to hum along just fine.
Here's the output of arbtt-stats:
$ arbtt-stats --logfile ~/.arbtt/capture-2017-11-29.log Processing data [==================================================>......] 89% arbtt-stats: Unsupported TimeLogEntry version tag 0 CallStack (from HasCallStack): error, called at src/Data.hs:90:15 in main:Data