Fix tests warnings

askama/src/error.rs

@@ -90,6 +90,7 @@ impl From<::serde_yaml::Error> for Error {
 mod tests {
     use super::Error;
 
+    #[allow(dead_code)]
     trait AssertSendSyncStatic: Send + Sync + 'static {}
     impl AssertSendSyncStatic for Error {}
 }

testing/tests/size_hint.rs

@@ -3,6 +3,7 @@ use askama::Template;
 macro_rules! test_size {
     ($source:literal, $expected:expr) => {{
         #[derive(Template)]
+        #[allow(dead_code)]
         #[template(source = $source, ext = "txt")]
         struct T(bool);