these 6 derivations will be built:
  /nix/store/dm3dfg6yrvi769f0j6bn70azgdmh3xkv-source.drv
  /nix/store/d032kqzczfm0qfbaxckw6z3xxw4w9rxj-iets-fuzz-diff-deps-0.0.0.drv
  /nix/store/5nrzv12yg1z7sqhbxqs5z8kjjnqc14sj-iets-fuzz-diff-0.0.0.drv
  /nix/store/6110xjvk5b0pxhyl45gj2ll20w0p6gy6-cargo-vendor-dir.drv
  /nix/store/c2zzm4kgc51mpq0k38ga94088lam5fvw-iets-fuzzers-0.0.0.drv
  /nix/store/ly2n08vsxmzn8cbinlj2q6dl1lvxn219-iets-fuzz-drv-eval-check.drv