these 6 derivations will be built:
  /nix/store/mn8rkfw2hh387naksmhgyrnfzdwq1vx0-iets-0.1.0.drv
  /nix/store/fxa3c4xa6g7mjm67nlsy5mg67dk4zw86-closure-info.drv
  /nix/store/9zqwv57fhfbyzl4gacnk9ybm4991rv3w-test-script.drv
  /nix/store/134n11lfbzkn2h3nl65s66gfg7k2v88a-driverConfiguration.json.drv
  /nix/store/r9h5gwqrgi0s9vhq4x1ym2fkf271449n-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/n437d1fb67p0jscnys7zyr8k3q8ili1z-container-test-run-iets-grpc-e2e.drv