these 3 derivations will be built:
  /nix/store/cg32l2f1wxbjmzp98d59n8mrld218vw4-treefmt.toml.drv
  /nix/store/izfhg2p05nzspw3c5j1sy3z5d9c5783d-treefmt.drv
  /nix/store/m584jiw0sr1649njnimsnw3gllchhk5q-treefmt-check.drv