The crates.io registry, a central hub for Rust packages, recently implemented a change to improve package delivery efficiency. Their config.json configuration file now points to a Content Delivery Network (CDN) for certain resources. This shift offers faster and more reliable access for users around the globe. For more information, see Crates.io: Download changes.
However, a minor wrinkle exists for users who leverage JFrog Artifactory as a remote registry when using the Cargo Remote Repositories. Caches containing unexpired packages might still reference the old, non-CDN URLs in the previously downloaded config.json file, meaning that they would not benefit from this update.