these 4 derivations will be built:
  /nix/store/cpzvs0bz9ikc1w4f7k3lz8688wb3jrrh-iets-0.1.0.drv
  /nix/store/r3i066h0f182l8chnbrshba7ialksfr5-iets-fuzz-diff-0.0.0.drv
  /nix/store/ziha4xyw68hykgjdn07pskhswcz1wlc1-iets-conformance-adapter.drv
  /nix/store/5ycx2lznggs19zif7acfbs8irk9zz67l-nix-conformance-iets.drv