these 2 derivations will be built:
  /nix/store/cid638vk8iaanvbvg2hc4r9mm57apv7s-iets-fuzzers-0.0.0.drv
  /nix/store/f84clazriivz1hmf64mlv539zb62p55s-iets-fuzz-drv-check.drv