these 3 derivations will be built:
  /nix/store/sh15mxpzfsqrfksz0ihkwh8qwslack0x-treefmt.toml.drv
  /nix/store/84rdsjabc2va8is2zldz3c4flg492464-treefmt.drv
  /nix/store/61qmr95ycs5wpc4y5zpwilxbd9mpyf4q-treefmt-check.drv