main()1fn main() { 2 let target = 42; 3 // Make sure raw ptr with raw tag cannot mutate frozen location without breaking the shared ref. 4 let r#ref = ⌖ // freeze 5 let ptr = r#ref as *const _ as *mut _; // raw ptr, with raw tag 6 unsafe { *ptr = 42; } //~ ERROR borrow stack 7 let _val = *r#ref; 8 } 9