these 3 derivations will be built:
  /nix/store/m37dpya3g12v6ldwwdhc05dafd0nb4s7-treefmt.toml.drv
  /nix/store/m432sax8jpzgvmglh5zlgmg6y5cdkp9z-treefmt.drv
  /nix/store/zsz8i3fvkvp5hm2qf0jpfb8331028b2f-treefmt-check.drv