these 6 derivations will be built:
  /nix/store/i0905g305xbivhmbgxn8zk2r4jnqcil6-iets-0.1.0.drv
  /nix/store/vslfcbklhq0vcwg7v32gxy80whs70dcn-closure-info.drv
  /nix/store/2fjg1kzq5rqsiw19qac9wfp1spvscvx7-test-script.drv
  /nix/store/qf2vab7l8klwmg0a0knr4if8d6ckbpib-driverConfiguration.json.drv
  /nix/store/2y880lc1nhr6y8b93hdkp81c2m4qkav8-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/554lrk4zcxv3pq75b4mjg5yd5pq2qla7-container-test-run-iets-grpc-e2e.drv