these 4 derivations will be built:
  /nix/store/4l8393ycmagrwdwyfixa4skrqc6dcyw3-iets-0.1.0.drv
  /nix/store/5466d542d0k36mi2pils30wanb1kdjm9-iets-fuzz-diff-0.0.0.drv
  /nix/store/r1amfrglaczh3sr94b4zxx9zapcbnkis-iets-conformance-adapter.drv
  /nix/store/5nbcv9wkipkdsjd82sn8fp2fbzz5z06q-nix-conformance-iets.drv