these 6 derivations will be built:
  /nix/store/s2d4wm0m9ag612axbw9f5fciksspjps0-iets-0.1.0.drv
  /nix/store/j7jgg9al3hn8lbkszi1bhk7ycp4322z6-closure-info.drv
  /nix/store/q210d2cwmx3n4iyqlhkdmjmagwa79n9j-test-script.drv
  /nix/store/4id4qha8l1ga2wlz1mx9b345kbcplpqj-driverConfiguration.json.drv
  /nix/store/8j8jf8979hy8nf2vcr8ljcihfghrmrjz-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/660hvcbwf3z77zm088rkpw49k3bkfvc3-container-test-run-iets-grpc-e2e.drv