I don't think so. Rust solve a class of security issue, but that class is 2/3 of all security issues! That's overwhelmingly more secure.
And it's not like it has no effect on the final third either. The stronger type system and ownership system make non-memory related bugs less likely too.
Your comment makes it sound as if you have a better solution. But Rust is the best one we know so far, so this kind of naysaying does more harm than good.