Yep, if you can upload it somewhere, I'd be happy to take a look at the full log (we unfortunately can't attach files to PMs :/).
You could also attach it to a new issue on GitHub, that'd work, too
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The fact that it doesn't crash when tracing is, err, weird and/or interesting
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I'm not familiar with how stuff is setup on PB, but does the same thing happen when running it manually *without* strace? (i.e.,
./reader.lua .).