these 6 derivations will be built:
  /nix/store/kgxf2k6pb8ilg0g9bv7jzq2bkw0kj2v5-iets-0.1.0.drv
  /nix/store/3parlbvglpnrz6piwy8rvv3kc0icamhw-closure-info.drv
  /nix/store/19gk15150mdq9nf6wanz0f5j4sdxnzzz-test-script.drv
  /nix/store/afgr5rh700jw8vw4anrf4czwk992dfs5-driverConfiguration.json.drv
  /nix/store/dm0wncvvaimxyl18zgxxchx0z33mzq4y-nixos-test-driver-iets-cachetest.drv
  /nix/store/vsin11rq2v3rv465zf5phyna4k63qjkk-container-test-run-iets-cachetest.drv