Add: Credential user log message.

src/main.rs

@@ -109,6 +109,7 @@ async fn main() -> anyhow::Result<()> {
     let creds = InMemoryStore::new();
     for c in cfg.credentials.iter() {
         creds.insert(&c.username, &c.password);
+        info!("credential loaded user={} len={}", c.username, c.password.len());
     }
 
     let auth = AuthManager::new(creds.clone(), &cfg.auth);