these 3 derivations will be built:
  /nix/store/1qlyzcc1m35q55bj6dpawn2q5k6kwvam-treefmt.toml.drv
  /nix/store/yhlma8l2bh72zqqvxzi7xbgpdzz189vs-treefmt.drv
  /nix/store/kylhxzw463dd2s7yh2bxg0v48jgb9yvn-treefmt-check.drv