these 2 derivations will be built:
  /nix/store/crv98vjk59x3jqia4si1ryq2m8qcqf4n-iets-conformance-adapter.drv
  /nix/store/z1jswms72hi264wfkq2kxw2wnm1mwx6b-nix-conformance-iets.drv