) violated: hint::unreachable_unchecked must never be reached This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.unsafe precondition(s) violated: Layout::from_size_align_unchecked requires that align is a power of 2 and the rounded-up allocation size does not exceed isize::MAX This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.unsafe precondition(s) violated: slice::from_raw_parts_mut requires the pointer to be aligned and non-null, and the total size of the slice not to exceed `isize::MAX` This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.