these 3 derivations will be built:
  /nix/store/1s853v2jwhxb5y7g4v1pkc0q81x3mqbq-treefmt.toml.drv
  /nix/store/6hq66gjknn6kj5fq8ry1znsf43kymsin-treefmt.drv
  /nix/store/bvljry7lpzq4gd7lpcp58rhsrqjbyvcg-treefmt-check.drv