these 4 derivations will be built:
  /nix/store/k8x9381gm68x5d2sjmi03ik14f1nxrwa-iets-fuzz-diff-0.0.0.drv
  /nix/store/l244631y2lvn93jba0xldzb9js9zxl0j-iets-0.1.0.drv
  /nix/store/iyyvgi6h1a3mn7pyz6lghx617vz5ns56-iets-conformance-adapter.drv
  /nix/store/73fb58x42cm4x04ngqzzyz4shzrm55v2-nix-conformance-iets.drv