these 3 derivations will be built:
  /nix/store/w2yas3m83rfy863kcqa6flm78yxi3r8y-treefmt.toml.drv
  /nix/store/6f8avfaxv1rfnqrnl8d9q8hf47iinflq-treefmt.drv
  /nix/store/kn9nqcziipb380qkrm0790khxd6wcfjv-inputDerivation-treefmt-check.drv