these 3 derivations will be built:
  /nix/store/x3pg5wyh2qnkxbffvxw12arr6xjcnxmd-treefmt.toml.drv
  /nix/store/ifjbnjqpi6w7yn1b8nsm68px4aklqjyv-treefmt.drv
  /nix/store/znvq6nzjic1d18mym3namvgpp3flhydi-treefmt-check.drv