I've set up a private registry using margo and a simple Rocket server. It works really well, and it has solved a few annoyances we've had to live with over the years. However, I noticed that cargo outdated doesn't play well with the private registry. It terminates with a Source should be ready error. (Commenting out the private registry makes cargo outdated run as usual).
Is there an alternative to cargo-outdated that is known to work with private registries?