Very interesting, thanks for showing me. Messing with the code, it fails if you access mut1 before the mutation of mut2 because of the mutable borrow. I did kn

Very interesting, thanks for showing me. Messing with the code, it fails if you access mut1 before the mutation of mut2 because of the mutable borrow. I did know but forget that all variables are dropped at the end of a scope, not earlier. Borrows can however last for shorter times and as this example illustrates. They can be borrowed multiple times, as long as they are returned before the parent uses their borrow.