these 3 derivations will be built:
  /nix/store/fxkasjcv1p4x5lrm0vxm1gqp7v21qdf1-treefmt.toml.drv
  /nix/store/a028mx054gmg3mg3kz0bzynigpf72f72-treefmt.drv
  /nix/store/15b8ddzf9xkr03sm37vbfqcp0y9n4dlc-treefmt-check.drv