SIGSEGV in nimIncRefCyclic when called from exit proc

[arnetheduck]

Description

/home/runner/work/nim-unittest2/nim-unittest2/nim/lib/std/exitprocs.nim(49) callClosures
/home/runner/work/nim-unittest2/nim-unittest2/unittest2.nim(1383) runScheduledTests
/home/runner/work/nim-unittest2/nim-unittest2/unittest2.nim(308) suiteRunStarted
/home/runner/work/nim-unittest2/nim-unittest2/unittest2.nim(278) suiteRunStarted
/home/runner/work/nim-unittest2/nim-unittest2/nim/lib/pure/collections/tables.nim(1723) suiteRunStarted
/home/runner/work/nim-unittest2/nim-unittest2/nim/lib/system/orc.nim(46) nimIncRefCyclic
SIGSEGV: Illegal storage access. (Attempt to read from nil?)

Nim Version

devel, 2.0

This can be seen in the following unit test run:

https://github.com/status-im/nim-unittest2/actions/runs/5962495133/job/16173791513

It can be reproduced by running the unittest2 test suite with nim 2.0 and arc/orc.

Current Output

No response

Expected Output

No response

Possible Solution

No response

Additional Information

No response