I've been having issues with Hazel for almost a month or longer. Hazel ends up using all RAM, moves on to my disk storage as swap memory and then finally Mac mini crashes and reboots.
It seems all hazelworkers that run takes up gigabytes of memory and doesn't offload it at all. I also noted that under logs, Hazel had a 34 GB log file.
I collected the PID info, sampled process and pulled logs. I'm unable to send this as a direct message, let me know how best to transmit it.