Compiler warnings in JSStringWrapper::JSStringWrapper

I got a compiler warning below when building from source

In file included from /usr/include/string.h:494,
from /usr/include/c++/9/cstring:42,
from src/third_party/mozjs-60/include/mozilla/Span.h:33,
from src/third_party/mozjs-60/include/mozilla/Range.h:12,
from src/third_party/mozjs-60/include/jsapi.h:15,
from src/mongo/scripting/mozjs/jsstringwrapper.h:33,
from src/mongo/scripting/mozjs/jsstringwrapper.cpp:32:
In function 'char* strncpy(char*, const char*, size_t)',
inlined from 'mongo::mozjs::JSStringWrapper::JSStringWrapper(int32_t)' at src/mongo/scripting/mozjs/jsstringwrapper.cpp:48:12:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:34: error: 'char* __builtin_strncpy(char*, const char*, long unsigned int)' specified bound 64 equals destination size [-Werror=stringop-truncation]
106 | return _builtin_strncpy_chk (dest, __src, __len, __bos (_dest));