these 3 derivations will be built:
  /nix/store/xqg4rzw479jmmym80lgbxq2pcp1jqq08-treefmt.toml.drv
  /nix/store/bhpf3hwg5c0nr7idjpfnsksighdj94cp-treefmt.drv
  /nix/store/qkz1049qb4shq86a2534jsiji58dz90d-treefmt-check.drv