Segfault

Just FYI — This started happening after a recent pacman -Syu. I re-installed from AUR thinking it may be due to relying on old libraries, but it didn't make a difference.

$ uname -a
Linux persistence 5.3.1-zen1-1-zen #1 ZEN SMP PREEMPT Sat Sep 21 11:33:40 UTC 2019 x86_64 GNU/Linux

$ cat /etc/udevmon.yaml 
- JOB: "intercept -g $DEVNODE | caps2esc | uinput -d $DEVNODE"
  DEVICE:
    EVENTS:
      EV_KEY: [KEY_CAPSLOCK, KEY_ESC]
      
$ sudo /usr/bin/nice -n -20 /usr/bin/udevmon -c /etc/udevmon.yaml 
Segmentation fault