these 3 derivations will be built:
  /nix/store/x00qm4iwar55f7gqmz6i8bqgp4lc0kzg-treefmt.toml.drv
  /nix/store/m7jv2vx1pb807436nhdbc309ksrc1cdm-treefmt.drv
  /nix/store/c7sdw5vp1x0d9i4ijfipk7360ir5jg49-treefmt-check.drv