these 4 derivations will be built:
  /nix/store/98b1lrc5xlgisx21dcmpkir1zbj9247g-iets-0.1.0.drv
  /nix/store/vk8x5k8ippvx3kcck9qzlxkmg2n7b7j3-iets-fuzz-diff-0.0.0.drv
  /nix/store/am9i2mibhhy6q49r6ykrbgnadybxxhfs-iets-conformance-adapter.drv
  /nix/store/ki1x6i0fcdm4m25ck70m1v5lxvhgqcpb-nix-conformance-iets.drv