I have a nixops configuration (my first one) that has been working for a couple months. Earlier this week I went to redeploy (without config changes, trying to debug an intermittent docker issue on the target machine) and it hung at copying closure.... Since then it hangs here every time. I've tried running with --debug and no relevant additional information is printed.

I've tried rebooting the target machine, nixos-rebuild --rollback to a prior working generation on the target machine, updating nixopsUnstable on the host machine.

rsyncing the config over and doing nixos-rebuild switch locally works without errors (I have it set up so it uses the same config through nixops).

Are there other debugging steps I can take?