these 4 derivations will be built:
  /nix/store/86bl68jiq35hpbdccnf1kdgxliwd2xi1-iets-fuzz-diff-0.0.0.drv
  /nix/store/bzqq2lmmabaaw28mxm1w8q1q4hk02gi4-iets-0.1.0.drv
  /nix/store/gc72p6r0rk9gi91q5pkkiyhj7xqqrkbc-iets-conformance-adapter.drv
  /nix/store/y80vqq8jnv954ff7nyrf3694m35nlz27-nix-conformance-iets.drv