5 let root0 = Cell::new(42);
6 let wildcard = &root0 as *const Cell<i32> as usize as *const Cell<i32>;
7 // empty the stack to unknown (via SRW reborrow from wildcard)
8 let _ref0 = &*wildcard;
9 // Do a non-SRW reborrow from wildcard to start building up a stack again.
10 // Now new refs start being inserted at idx 0, pushing the unique_range up.
11 let _refn = &*&*&*&*&*(wildcard.cast::<i32>());
12 // empty the stack again, but this time with unique_range.start sitting at some high index.
13 let _ref0 = &*wildcard;
14 // and do a read which tries to clear the uniques
15 wildcard.cast::<i32>().read();