these 4 derivations will be built:
  /nix/store/ar6yrqv0rcb9zvlamjgjp37xznimzxq9-iets-fuzz-diff-0.0.0.drv
  /nix/store/lcsmly69f3s0skmyj8rjhwhhvqrh3ws9-iets-0.1.0.drv
  /nix/store/6wlhrv48isdahwgwrgsmkv8zz2y8b5sh-iets-conformance-adapter.drv
  /nix/store/4672nn738liii3hi2zw8wi42fsbz4ggs-nix-conformance-iets.drv