these 3 derivations will be built:
  /nix/store/g9mxwsnbz6fhg4iscj669a9yrrh6mkrs-iets-fuzzers-0.0.0.drv
  /nix/store/vks4wlrvyaim89g67yy0f1z7paz6kdw2-iets-fuzz-diff-0.0.0.drv
  /nix/store/1z60yrabxs7yn2dyb6jzv6262jz7x9s2-iets-fuzz-nar-check.drv