these 2 derivations will be built:
  /nix/store/z4z5qd9f8ddbqca0ig9lxsg9jpkss4zx-iets-deps-0.1.0.drv
  /nix/store/zw24yz1vcif6rp9ygqyqyxxyrvwxf7kx-iets-nextest-0.1.0.drv