these 4 derivations will be built:
  /nix/store/fpgnswzbn94ykcfmyhlmrcmkqc81d8xf-iets-0.2.0.drv
  /nix/store/hfb2yg9wqbb43azg8y56fwypfnxy05va-iets-fuzz-diff-0.0.0.drv
  /nix/store/xryzkh6cn1zc9xalljwzyvfxrp64vhsj-iets-conformance-adapter.drv
  /nix/store/2h24a266hhdphcl5j9sh9hi86khi0ssi-nix-conformance-iets.drv