this derivation will be built:
  /nix/store/nn12kn6cakqvk26davxmkzxfa6vx7fsq-treefmt-check.drv
nn12kn6cakqvk26davxmkzxfa6vx7fsq-treefmt-check.drv: mac02: not scheduled here: nn12kn6cakqvk26davxmkzxfa6vx7fsq-treefmt-check.drv, asking the scheduler again