For what it's worth, in that specific instance there's no memory safety issue since Rust is guaranteed to crash on stack overflow on Ubuntu (and probably other supported Linux distros)
For what it's worth, this is not only that specific instance. Rust might not be memory safe in theory, but when talking about "in practice" - there is profound evidence that Rust's memory safety works.
For what it's worth, in that specific instance there's no memory safety issue since Rust is guaranteed to crash on stack overflow on Ubuntu (and probably other supported Linux distros)