these 6 derivations will be built:
  /nix/store/arabxmvw6fqq3j31jsk197bs9d2bnnif-iets-0.1.0.drv
  /nix/store/ff554bczbdf0hp9cbqx0pb2hks7vns7l-closure-info.drv
  /nix/store/q9l0gx3h9gs3c6v8p22ax8wzjw0s78d1-test-script.drv
  /nix/store/91avpqh8lwklh8z74baqagxg67f9vh4j-driverConfiguration.json.drv
  /nix/store/s7rzwj2vygzjwwarv38iicq9cx3rq7yb-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/kyr2f39vljj9m90n0xci12lncdrisy7z-container-test-run-iets-grpc-e2e.drv