these 6 derivations will be built:
  /nix/store/ig5bk62gbh1kd474q3fb874va2i0i8hs-iets-0.1.0.drv
  /nix/store/vj574yh9lm99x1yv90maaqhywg777wyy-closure-info.drv
  /nix/store/p6ja1qik66l58q8mgzdn3w6j814n5yr5-test-script.drv
  /nix/store/2ynxf33c5ykyr0cp1asgjrp6yvxghd4a-driverConfiguration.json.drv
  /nix/store/s8a3dsn014khmnh6mq05wk002i88hpkb-nixos-test-driver-iets-cachetest.drv
  /nix/store/r8wwvrxjvmqmdfy8k92c2c7ah4f0x0v9-container-test-run-iets-cachetest.drv