these 3 derivations will be built:
  /nix/store/6dkfj7srr7kp01gvj4lg08grvarahg4f-iets-fuzzers-0.0.0.drv
  /nix/store/g6px6xc6sql012f4a2kpdccmgp56y0p2-iets-fuzz-diff-0.0.0.drv
  /nix/store/kjvc2163v2fvi35vh1rkp3li2shl3nbm-iets-fuzz-drv-check.drv