these 3 derivations will be built:
  /nix/store/nwrkid52b8igk46kq7q8424jkwsgb9pw-treefmt.toml.drv
  /nix/store/sff9g6wv3zphxgjzkmx4zpj6fmw36003-treefmt.drv
  /nix/store/0nz1y4s27k7sx78d50szksgmsf26xlix-inputDerivation-treefmt-check.drv