these 4 derivations will be built:
  /nix/store/ll6zqy1qp9vlicgaqapccwxrj0ksxqfw-iets-fuzz-diff-0.0.0.drv
  /nix/store/qbq8mafp6706vvmmpvh2gwhfd379qypx-iets-0.1.0.drv
  /nix/store/ji6rfkcjb0a39rxndaypcxwk234dnc23-iets-conformance-adapter.drv
  /nix/store/wwcs8rclqa4mqkgvi9s0wxkl43rmngwc-nix-conformance-iets.drv