fix(transport): Update benchmark code

lettre/benches/transport_smtp.rs

@@ -19,7 +19,7 @@ fn bench_simple_send(b: &mut test::Bencher) {
             "id".to_string(),
             "Hello world".to_string(),
         );
-        let result = sender.send(email);
+        let result = sender.send(&email);
         assert!(result.is_ok());
     });
 }
@@ -37,7 +37,7 @@ fn bench_reuse_send(b: &mut test::Bencher) {
             "id".to_string(),
             "Hello world".to_string(),
         );
-        let result = sender.send(email);
+        let result = sender.send(&email);
         assert!(result.is_ok());
     });
     sender.close()

lettre/src/smtp/client/mod.rs

@@ -237,7 +237,7 @@ impl<S: Connector + Write + Read + Timeout + Debug> Client<S> {
             return Err(From::from("Connection closed"));
         }
 
-        self.stream.as_mut().unwrap().write(string)?;
+        self.stream.as_mut().unwrap().write_all(string)?;
         self.stream.as_mut().unwrap().flush()?;
 
         debug!(