I'm not a Ruster, I've spent my career writing a ton of C++. But I'm interested in Rust as an alternative because it doesn't need GC. But in this case, it's no

I'm not a Ruster, I've spent my career writing a ton of C++. But I'm interested in Rust as an alternative because it doesn't need GC. But in this case, it's not just the memory safety I'm interested in, it's the data races. If we have multiple threads but can guarantee that any object either has only read-only references, or one mutable references and no readers, we don't have data race issues.