these 6 derivations will be built:
  /nix/store/ndgymdnbi9q1f1w83sxh47yxkwprvx30-iets-0.1.0.drv
  /nix/store/0gi8mb2kffipnzavjjhzibq3fhisb7p8-closure-info.drv
  /nix/store/19f1y81nmkqcsl6cdlh83dya7gd5kwxv-test-script.drv
  /nix/store/f616rgbv726pcyppyk5zhsn99f35qh5n-driverConfiguration.json.drv
  /nix/store/af5bq0zj4p1a62fdfs06j5n7szgswbk2-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/ajj95d73w0gkk695xnn9l3iih7zhywvh-container-test-run-iets-grpc-e2e.drv