[simias]

The key difference for me is that you have to explicitly handle Results somehow, you can't just pretend that the function is infallible and hope that something up-stack is going to deal with all the failure modes. Also while you can have generic Error types it's generally frowned upon for libraries which are encouraged to provide meaningful error types that can be used to decide how a problem should be dealt with. Coupled with Rust's pattern matching it makes for concise and expressive error handling in my experience.