error[E0597]: `*cell` does not live long enough
--> $DIR/dropck.rs:10:40
|
+LL | let (mut gen, cell);
+ | ---- binding `cell` declared here
+LL | cell = Box::new(RefCell::new(0));
LL | let ref_ = Box::leak(Box::new(Some(cell.borrow_mut())));
| ^^^^^^^^^^^^^^^^^ borrowed value does not live long enough
...