these 3 derivations will be built:
  /nix/store/yccxd0n8l3bjvbzms7pw3bsv3gjs3m8d-treefmt.toml.drv
  /nix/store/h3hgh1qcpia1xkh4w73mdg8miyfp8vby-treefmt.drv
  /nix/store/r3c29ddxkbassqwh9y527zf64n0x7dh8-treefmt-check.drv