these 4 derivations will be built:
  /nix/store/4353nsg2ka9w8x593j399ac0zsb1hc92-iets-fuzz-diff-0.0.0.drv
  /nix/store/5vq6435vkjx3qxw7k4ys00zaagxggghn-iets-0.1.0.drv
  /nix/store/7nvk2757c9xzj28pwb9v9v7qggl7xa2m-iets-conformance-adapter.drv
  /nix/store/0f8280nf8l35pc4yssc5aavalrgmkzwq-nix-conformance-iets.drv