these 6 derivations will be built:
  /nix/store/3vb8fi2iambaz032qrqpdnc4c145ybv7-iets-0.1.0.drv
  /nix/store/2z8wjh4nsv42n6j57n6g9b8nl0h5sbwm-closure-info.drv
  /nix/store/fq9w7rqqm237jzp4v5p3p4fd2kl2a6lm-test-script.drv
  /nix/store/chg2yv9p6m837ipmpfl92d917cnzlq97-driverConfiguration.json.drv
  /nix/store/0cblkjqxlv44r0lnjwlx3qnkcypp40l2-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/axvzyk6b1vdwh5v78gpwmd4qnpzckrry-container-test-run-iets-grpc-e2e.drv