In my (admittedly somewhat limited) experience, these don't come up that frequently. except number 5; I've had several times where I've had to be aware of where

In my (admittedly somewhat limited) experience, these don't come up that frequently. except number 5; I've had several times where I've had to be aware of where references are coming from. I would say give Rust a go anyway. Worst case is you end up not getting along with it, best case is you now have a new tool to reach for.