these 3 derivations will be built:
  /nix/store/8prqf28ncy6w6alxjahf2bsjhfj1bgjp-iets-fuzz-diff-0.0.0.drv
  /nix/store/l10chxnz9dklbx570q749xg59ixkwq6g-iets-fuzzers-0.0.0.drv
  /nix/store/1iymhvfqxh9fdd37x4g4q69nlxp6h62w-iets-fuzz-parse-check.drv