topology: Marked Peer as non-exhaustive
So that we will be able to add more fields in a backwards-compatible
way.
@@ -49,6 +49,7 @@ pub struct Metadata {
pub keyspaces: HashMap<String, Keyspace>,
}
+#[non_exhaustive] // <- so that we can add more fields in a backwards-compatible way
pub struct Peer {
pub host_id: Uuid,
pub address: SocketAddr,
