these 3 derivations will be built:
  /nix/store/5b8p5x6jy4arzswdgw3rxrw52faafnx8-treefmt.toml.drv
  /nix/store/1s9ns9s3q03sw26ilwz6q4vw9m8lqwzj-treefmt.drv
  /nix/store/wlfpv5nrjhr1hkydxxqkjgr9qwqj01ff-treefmt-check.drv