these 2 derivations will be built:
  /nix/store/3xfzb349fvwymx66b38w2q4hb99lyazx-iets-conformance-adapter.drv
  /nix/store/m6q0h57p2f31qz9xg61w190yvk5ggny3-nix-conformance-iets.drv