chore: remove benches and fix/work around clippy lints (#1952)

examples/tinyhttp.rs

@@ -27,7 +27,9 @@ use tokio_util::codec::{Decoder, Encoder, Framed};
 async fn main() -> Result<(), Box<dyn Error>> {
     // Parse the arguments, bind the TCP socket we'll be listening to, spin up
     // our worker threads, and start shipping sockets to those worker threads.
-    let addr = env::args().nth(1).unwrap_or("127.0.0.1:8080".to_string());
+    let addr = env::args()
+        .nth(1)
+        .unwrap_or_else(|| "127.0.0.1:8080".to_string());
     let mut server = TcpListener::bind(&addr).await?;
     let mut incoming = server.incoming();
     println!("Listening on: {}", addr);