these 6 derivations will be built:
  /nix/store/njvvgziw41p30kin8mz1ayrnbcwh4k6v-iets-0.1.0.drv
  /nix/store/f8smq96vrkq68a1sy9hfbi00wnqgdv7d-closure-info.drv
  /nix/store/wkblrl7gv7cpxsc0dqxq68ppg678dk8v-test-script.drv
  /nix/store/pkximh96v3zascszl2fxd02nm8jkf8qk-driverConfiguration.json.drv
  /nix/store/h31j1v5vdrdiklpmpvdhi8sa55k437zm-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/wxgjxwhwzzlb5mjylj4rl4cdq21g062v-container-test-run-iets-grpc-e2e.drv