these 4 derivations will be built:
  /nix/store/1r4lifb9kair8wxc6y5q101y7fw999ms-iets-fuzz-diff-0.0.0.drv
  /nix/store/g297pzg1iswdrjmmcmy5zz9bkw524wgy-iets-0.1.0.drv
  /nix/store/ifz6hr51v4aji193s0zp3kgc0pmaz7hl-iets-conformance-adapter.drv
  /nix/store/0bffnik35x2nw0yb945jhkaw8cabwzzm-nix-conformance-iets.drv