these 3 derivations will be built:
  /nix/store/ifbkr96bwwijgzm13yr8rfs1ly1hybxk-treefmt.toml.drv
  /nix/store/ff2v6ywabz2qdfwamgd2j90i42cnccs5-treefmt.drv
  /nix/store/m0shc2shmf0bxjasr49m9r4rr264dlkc-treefmt-check.drv