these 2 derivations will be built:
  /nix/store/6jkhngbspphdd6b1rj7n6sw302lapypc-iets-fuzzers-0.0.0.drv
  /nix/store/vgj59cnbnmrpp37b77rh0h9ff35lbxx4-iets-fuzz-drv-check.drv