these 4 derivations will be built:
  /nix/store/a6dgwbpd9fj52fxq2v9dxhrg8dnq1jqq-iets-fuzz-diff-0.0.0.drv
  /nix/store/j6pi821xvk2iwmyz7jlaw74s3qcp90i1-iets-0.1.0.drv
  /nix/store/pqiinx3xd1wmr7sq11891sl2mxivg5hk-iets-conformance-adapter.drv
  /nix/store/xzcg8ql7dq9ic7d9dildqzdc8zvla06s-nix-conformance-iets.drv