these 6 derivations will be built:
  /nix/store/0jpixj59pj9c1ibqzz5zwymf79yqpk1y-iets-0.1.0.drv
  /nix/store/6c71kgd718zyh1d204f789y7cy7jwm7v-closure-info.drv
  /nix/store/r2nbij9n6px9na7v77770i00xa39b78z-test-script.drv
  /nix/store/h9kf3vvfyd8zzlqdywng3vsf5i55y6hr-driverConfiguration.json.drv
  /nix/store/l6ql4h9q9dkg758myzwlm0nbgy8rv16n-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/8svcl2qjyczy559dlgw6wgbdvm85z8hh-container-test-run-iets-grpc-e2e.drv