message: Relax the feed_nodes collection check, which triggers a false positive in some modes where the feed node collection is auto-generated. Keep it as a warning to help correct user-provided feed node lists.
diff: @@ -229,7 +229,8 @@ Status VirtualScheduler::Init() {
  return Status(error::UNAVAILABLE, "No ready nodes in the graph.");
  }
  - CHECK(feed_nodes.empty()) << "Some feed nodes were not found in the graph: "
  + if (!feed_nodes.empty())
  + LOG(ERROR) << "Some feed nodes were not found in the graph: "
  << str_util::Join(feed_nodes, ",");
  initialized_ = true;
  