these 3 derivations will be built:
  /nix/store/q1g48ychj11935n0dpx86pi59dm5z76p-treefmt.toml.drv
  /nix/store/0n17iw66knvkbfznib79xh67d87kyp3x-treefmt.drv
  /nix/store/rlsjaskc7bjn008g1fmm6asrsrj96nkd-treefmt-check.drv