these 6 derivations will be built:
  /nix/store/pysdg60bxwkp93vkr34wgpjaciwsb4mg-iets-0.1.0.drv
  /nix/store/n1im4d4n2vs29nvsmcdn3drynysv0xnw-closure-info.drv
  /nix/store/x782mpgi7vks939hb5qwml94b0a5gjgn-test-script.drv
  /nix/store/pkxvf7riv0ja9z5lnidcmy8cw8qhpsbc-driverConfiguration.json.drv
  /nix/store/qpaswfbblgiwc01sk0a7fbkkir3jh40x-nixos-test-driver-iets-cachetest.drv
  /nix/store/32pnysjrxgxgij8m6h7rymvds8lxyn8r-container-test-run-iets-cachetest.drv