this derivation will be built:
  /nix/store/vlyfvsdhvsb5hji142xf3ajichph602b-treefmt-check.drv
vlyfvsdhvsb5hji142xf3ajichph602b-treefmt-check.drv: mac02: not scheduled here: vlyfvsdhvsb5hji142xf3ajichph602b-treefmt-check.drv, asking the scheduler again