these 3 derivations will be built:
  /nix/store/lq1d595k9qsnp21vfnb283b6fz9chjly-treefmt.toml.drv
  /nix/store/0xx70ph26gbkjynr848nfc6g2ix1knkp-treefmt.drv
  /nix/store/ldpg1yqf4wx2xxspi34q7ym81qgbs6ky-treefmt-check.drv