1 error[E0503]: cannot use `value` because it was mutably borrowed
4 LL | let _borrow = &mut value;
5 | ---------- borrow of `value` occurs here
6 LL | let _sum = value + 1;
7 | ^^^^^ use of borrowed `value`
8 LL | _borrow.use_mut();
9 | ------- borrow later used here
11 error: aborting due to previous error
13 For more information about this error, try `rustc --explain E0503`.