In addition to munificient's response, I'd point out that this will likely have a significant performance cost. Since performance is one of the main reasons of

In addition to munificient's response, I'd point out that this will likely have a significant performance cost. Since performance is one of the main reasons of using a low-level language like Rust, it should give you pause. I'm not saying there's anything bad with Arc + Mutex - they're certainly useful tools and great in some scenarios; it's just that I wouldn't reach out to them just to "avoid fighting the borrow checker". If your code can be written without those tools, it's best to do so.