these 6 derivations will be built:
  /nix/store/d45cn368wgkwb1ap7wgn1dsgz4y4cyw7-iets-0.1.0.drv
  /nix/store/p2r0wa53vw38n36cf4v3sfjs3x7klwz3-closure-info.drv
  /nix/store/l3h5zzg5yqlja0lfy1m752b4lfc0hlz5-test-script.drv
  /nix/store/sz4psqcqffify8br7j0gjxjdg71j7n8z-driverConfiguration.json.drv
  /nix/store/jw62qh309bdj1rq46vrs17wq7dwsk5aa-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/cd6fak4ncy43sz5x0rkq5lgi8z25zdjb-container-test-run-iets-grpc-e2e.drv