Can't run jobs on mac os catalina: process has forked and you cannot use this CoreFoundation functionality safely

Hey,

I’m having this issue on mac OS catalina, and I think it’s django-rq related. Not having the same errors by using rq directly (though I haven’t been able to completely set it up because it’s so much more complicated than using django-rq)

This setup was working fine on Ubuntu but my queue won’t process any jobs on mac os.

07:10:41 default: djpager.jobs.pager.generate_source(331) (f799a0ae-1500-4483-a1ce-818995c93bed)
The process has forked and you cannot use this CoreFoundation functionality safely. You MUST exec().
Break on __THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__() to debug.
objc[26643]: +[NSNumber initialize] may have been in progress in another thread when fork() was called.
objc[26643]: +[NSNumber initialize] may have been in progress in another thread when fork() was called. We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to debug.
07:10:41 Moving job to FailedJobRegistry (work-horse terminated unexpectedly; waitpid returned 6)

Googling around, the only suggestion I found was executing this command:

export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES

That makes the error message slightly shorter, but still no jobs are run:

07:23:26 default: djpager.jobs.pager.generate_source(362) (33fd1d39-5bc4-49b9-a1ee-c5fb0218fe95)
The process has forked and you cannot use this CoreFoundation functionality safely. You MUST exec().
Break on __THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__() to debug.
07:23:26 Moving job to FailedJobRegistry (work-horse terminated unexpectedly; waitpid returned 11)

Any suggestions on how to get this to work on mac os? Thanks a lot for all the great work on this project ♥️