these 6 derivations will be built:
  /nix/store/qs6z6ng746n4k230ddnkjl4qrzxzfb70-iets-0.1.0.drv
  /nix/store/dlwl6yng8nwhqb61irh4b7l9r8z5cdmj-closure-info.drv
  /nix/store/43807myxkzkdjbbi45dhs7jk3dbwmm9j-test-script.drv
  /nix/store/f8lrb9m8hz2kc78jwzyc4i5j06md8ypz-driverConfiguration.json.drv
  /nix/store/7l9f5q5slzbgpnhjriq0in8nyipp7hm9-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/ci15h27rsaw9gb1ya8zm87i18xli6na5-container-test-run-iets-grpc-e2e.drv