Fix new rustc lints

testing/tests/inheritance.rs

@@ -329,14 +329,9 @@ fn test_flat_deep() {
 
 #[derive(Template)]
 #[template(path = "let-base.html")]
+#[allow(dead_code)]
 struct LetBase {}
 
-#[test]
-fn test_let_base() {
-    let t = LetBase {};
-    assert_eq!(t.render().unwrap(), "");
-}
-
 #[derive(Template)]
 #[template(path = "let-child.html")]
 struct LetChild {}

testing/tests/simple.rs

@@ -345,6 +345,7 @@ struct FunctionTemplate;
 
 impl FunctionTemplate {
     #[allow(clippy::trivially_copy_pass_by_ref)]
+    #[allow(dead_code)]
     fn world3(&self, s: &str, v: u8) -> String {
         format!("world{s}{v}")
     }