these 3 derivations will be built:
  /nix/store/ijjqw7yarwznmlsvyc03y0a1a5v89f6r-treefmt.toml.drv
  /nix/store/4n1kpmzv33xx4lvgdq8m6p39bngb3bxq-treefmt.drv
  /nix/store/3kmwgmq6r4bbrg5cmri0y52ww0x1li4k-treefmt-check.drv