these 4 derivations will be built:
  /nix/store/q3blgr7bav6gjkyn1jmdfnv9wfbdvwyr-iets-fuzz-diff-0.0.0.drv
  /nix/store/z1ck2p136v0iq7x76b5wfq3q7pgq9sns-iets-0.1.0.drv
  /nix/store/b64x53icjd3hzm16njkx286z7lvdr3ic-iets-conformance-adapter.drv
  /nix/store/fa60by30qlh8k8db0mwipwvjia44s62f-nix-conformance-iets.drv