clippy: zero pedantic warnings across the tree

hive-c0re/src/operator_questions.rs

@@ -284,7 +284,8 @@ impl OperatorQuestions {
               ORDER BY answered_at DESC
               LIMIT ?1",
         )?;
-        let rows = stmt.query_map(params![limit as i64], row_to_question)?;
+        let limit_i = i64::try_from(limit).unwrap_or(i64::MAX);
+        let rows = stmt.query_map(params![limit_i], row_to_question)?;
         rows.collect::<rusqlite::Result<Vec<_>>>()
             .map_err(Into::into)
     }