these 4 derivations will be built:
  /nix/store/aik5v7cvlz25f7rdybyn4a63a1dpzqdc-iets-fuzz-diff-0.0.0.drv
  /nix/store/aqy3j68hvrhk4ikywr721fp2yz8sn9qb-iets-0.1.0.drv
  /nix/store/vh43lkln9sr4sahkhd07a44g60f578gg-iets-conformance-adapter.drv
  /nix/store/b8vacd7xwimy7c9a6v1q0d6b2z72h7hp-nix-conformance-iets.drv