Fuzz target exited with signal: 11

[ralpha]

I'm running the fuzzer on part of my codebase.
And it sometimes gives the following error:

#4993: cov: 16031 ft: 79453 corp: 4047 exec/s 23 oom/timeout/crash: 0/0/0 time: 401s job: 20 dft_time: 0
#5491: cov: 16031 ft: 79456 corp: 4050 exec/s 22 oom/timeout/crash: 0/0/0 time: 407s job: 21 dft_time: 0
────────────────────────────────────────────────────────────────────────────────

Error: Fuzz target exited with signal: 11

But the problem is there is no debug info, anywhere, no artifacts, no dump, no backtrace, ...
Even when I run it in debug mode it does not give me any more info.

It even got a Segmentation fault but no info and just continued (output looks weird, but this is how it was printed in the terminal):

#429	NEW    cov: 10201 ft: 33953 corp: 208/179Kb lim: 2091 exec/s: 22 rss: 159Mb L: 2030/2091 MS: 2 ChangeByte-InsertRepeatedBytes-
#431	NEW    cov: 10201 ft: 33955 corp: 209/181Kb lim: 2091 exec/s: 22 rss: 159Mb L: 2091/2091 MS: 2 CMP-CrossOver- DE: "dest_entity_id"-
#432	REDUCE cov: 10201 ft: 33955 corp: 209/181Kb lim: 2091 exec/s: 22 rss: 159Mb L: 1911/2091 MS: 1 EraseBytes-
Segmentation fault (core dumped)
#104446	REDUCE cov: 6554 ft: 31504 corp: 5703/2771Kb lim: 2790 exec/s: 629 rss: 504Mb L: 341/2757 MS: 2 ShuffleBytes-EraseBytes-
INFO: exiting: 139 time: 843s
#104735	REDUCE cov: 6554 ft: 31504 corp: 5703/2771Kb lim: 2790 exec/s: 627 rss: 504Mb L: 523/2757 MS: 2 ChangeByte-EraseBytes-
#105054	NEW    cov: 6558 ft: 31508 corp: 5704/2772Kb lim: 2790 exec/s: 629 rss: 504Mb L: 584/2757 MS: 4 ChangeBinInt-ShuffleBytes-ChangeBit-PersAutoDict- DE: "new_leader_hfid"-
#106017	REDUCE cov: 6558 ft: 31508 corp: 5704/2772Kb lim: 2790 exec/s: 631 rss: 504Mb L: 397/2757 MS: 2 InsertRepeatedBytes-EraseBytes-

Is there something misconfigured or what can I do to actually find out where things go wrong? Otherwise there is not much need for a fuzzer if I can not find the problems...
This could be false positives, as afl does not seem to find any crashes (yet).

[nagisa]

effective duplicate of #235