this derivation will be built:
  /nix/store/c3krac0n987bampg6dm0gk66y9g26ys2-treefmt-check.drv
c3krac0n987bampg6dm0gk66y9g26ys2-treefmt-check.drv: mac02: not scheduled here: c3krac0n987bampg6dm0gk66y9g26ys2-treefmt-check.drv, asking the scheduler again