these 2 derivations will be built:
  /nix/store/gx4bahh6ckacw9nrfcnzxikkvzwjlf84-iets-conformance-adapter.drv
  /nix/store/3w4wbipga18a45ms5jjh2sw49aw6z88r-nix-conformance-iets.drv