these 3 derivations will be built:
  /nix/store/hmmfd9cw7zn1dbr0sy9032jdkcksngnn-treefmt.toml.drv
  /nix/store/sm5cp91cw8099mpyhx9wfx8cy4c49m9h-treefmt.drv
  /nix/store/zc26h18n43hz0h8rxn5qwcqas79fwd2r-treefmt-check.drv