these 6 derivations will be built:
  /nix/store/4n9jsxvbar7vbqsw08r4q3nzrjknkln2-iets-0.1.0.drv
  /nix/store/siskfn4f7jhbcpziz8ca2wjv6awzp9d1-closure-info.drv
  /nix/store/6ld6vxmq6znfrrjqc9kf4m9n6ak8ii7n-test-script.drv
  /nix/store/q7s5a228484d639v83bma4vdk08szrvz-driverConfiguration.json.drv
  /nix/store/9fm69h830iyw094czb427574x2mmjqpj-nixos-test-driver-iets-cachetest.drv
  /nix/store/zvs40l6f500qdjxsw9wkm9ygymjirzrx-container-test-run-iets-cachetest.drv