hin the string slice This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.unsafe precondition(s) violated: invalid value for `char` This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.Platform not supportedmid > lencalled `Result::unwrap()` on an `Err` valuelayoutcapacity overflowassertion failed: mem::size_of::() == A::size() * mem::size_of::() && mem::align_of::() >= mem::align_of::()Range start out of boundsRange end out of boundsassertion failed: start <= endassertion failed: end <= lenassertion failed: index < lenassertion failed: layout.size() > 0entered unreachable code