these 4 derivations will be built:
  /nix/store/3xydkhsiv5fzgr1av5j6bmv7y5im9m3k-iets-fuzz-diff-0.0.0.drv
  /nix/store/yvf26z2qzkamn96anqhwvx4j9swsjkzg-iets-0.2.0.drv
  /nix/store/m3vqgpw5kmb3vjdpnpcp1y0w2yq9avx5-iets-conformance-adapter.drv
  /nix/store/fcv7w0yyzmr2mkqjwy3dx62mgzy4l3h2-nix-conformance-iets.drv