these 4 derivations will be built:
  /nix/store/300s6qf0x11na6zklbv12qfqghs94z4h-iets-0.1.0.drv
  /nix/store/kq39gkdba6m03sh5j86rqpw9i6r8z4q1-iets-fuzz-diff-0.0.0.drv
  /nix/store/la5r990hj04kkvwsmgi1r67f20ymgkkk-iets-conformance-adapter.drv
  /nix/store/dzfdhjiypafcqzi4a0dzcqgmwvaqplgb-nix-conformance-iets.drv