these 2 derivations will be built:
  /nix/store/zaxsiwgk3yqvfi0h3jh0580xy2hq6np8-iets-conformance-adapter.drv
  /nix/store/pcmx5qimgrs3lxzrjfk41g30vbflpywy-nix-conformance-iets.drv