these 2 derivations will be built:
  /nix/store/3ssl32bgn4jlqc4dfrb8lzzcpxm4sqkz-iets-conformance-adapter.drv
  /nix/store/pvy9xzs3b7ywc4pbn8w696w8f3zxrhg6-nix-conformance-iets.drv