Anyone who is strong in rustls and client cert auth, who might aid me in understanding why my server with the config seems to accept anything, even without ever being presented to a client cert?
```rust

            let mut client_auth_roots = rustls::RootCertStore::empty();
            for root in certs.iter() {
                client_auth_roots.add(root).unwrap()
            }

            let client_cert_verifier = AllowAnyAuthenticatedClient::new(client_auth_roots);

            let config = rustls::ServerConfig::builder()
                .with_cipher_suites(rustls::ALL_CIPHER_SUITES)
                .with_kx_groups(&rustls::ALL_KX_GROUPS)
                .with_protocol_versions(versions)
                .unwrap()
                .with_client_cert_verifier(client_cert_verifier.boxed())
                .with_single_cert(certs, privkey)
                .unwrap();

```