feat: v0.2.0-rc

src/app.rs

@@ -63,6 +63,7 @@ impl ProxyApp {
                         return Some(ipv4_address);
                     }
                 }
+                log::error!("DNS lookup: {} failed: not found", hostname);
             }
             Err(e) => {
                 log::error!("DNS lookup: {} failed: {}", hostname, e);