am. This Undefined Behavior check is optional, and cannot be relied on for safety.unsafe precondition(s) violated: ptr::copy_nonoverlapping requires that both pointer arguments are aligned and non-null and the specified memory ranges do not overlap This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.is_aligned_to: align is not a power-of-twounsafe precondition(s) 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.is_nonoverlapping: `size_of::() * count` overflows a usize