// run-pass // Issue #62007: assigning over a deref projection of a box (in this // case, `*list = n;`) should be able to kill all borrows of `*list`, // so that `*list` can be borrowed on the next iteration through the // loop. #![allow(dead_code)] struct List<T> { value: T, next: Option<Box<List<T>>>, } fn to_refs<T>(mut list: Box<&mut List<T>>) -> Vec<&mut T> { let mut result = vec![]; loop { result.push(&mut list.value); if let Some(n) = list.next.as_mut() { *list = n; } else { return result; } } } fn main() {}