these 3 derivations will be built:
  /nix/store/61w6rjg91ckv18psnvmydj6rs6fvvck3-iets-fuzzers-0.0.0.drv
  /nix/store/9l8447v0pma0ixlb27jzrql7i6bv6f5q-iets-fuzz-diff-0.0.0.drv
  /nix/store/xc0mxvg6y0r66rlzk2jw5j9fc1l97vwz-iets-fuzz-nar-check.drv