diff --git a/neo4j/src/driver/io/pool.rs b/neo4j/src/driver/io/pool.rs
index 47d1936..3c8f437 100644
--- a/neo4j/src/driver/io/pool.rs
+++ b/neo4j/src/driver/io/pool.rs
@@ -551,7 +551,7 @@ impl RoutingPool {
             Ok(mut new_rt) => {
                 if args.db.is_some() {
                     let db = args.db.cloned();
-                    new_rt.database = db.clone();
+                    new_rt.database.clone_from(&db);
                     rts.insert(db.clone(), new_rt);
                     self.clean_up_pools(rts);
                     Ok(db)
diff --git a/neo4j/src/lib.rs b/neo4j/src/lib.rs
index 7d0c197..77bd805 100644
--- a/neo4j/src/lib.rs
+++ b/neo4j/src/lib.rs
@@ -233,6 +233,7 @@ pub mod transaction {
 
 mod private {
     // Trait to prevent traits from being implemented outside of this crate.
+    #[allow(dead_code)]
     pub trait Sealed {}
 }
 
diff --git a/testkit_backend/src/testkit_backend/bookmarks.rs b/testkit_backend/src/testkit_backend/bookmarks.rs
index 5c97ba0..dd99930 100644
--- a/testkit_backend/src/testkit_backend/bookmarks.rs
+++ b/testkit_backend/src/testkit_backend/bookmarks.rs
@@ -128,10 +128,3 @@ fn make_consumer_fn(
         }
     }
 }
-
-#[derive(Debug)]
-pub(super) struct TestKitBookmarkManager {
-    // id: BackendId,
-    // backend_io: Arc<AtomicRefCell<BackendIo>>,
-    // id_generator: Generator,
-}
diff --git a/testkit_backend/src/testkit_backend/responses.rs b/testkit_backend/src/testkit_backend/responses.rs
index ed98f38..dfb4ee3 100644
--- a/testkit_backend/src/testkit_backend/responses.rs
+++ b/testkit_backend/src/testkit_backend/responses.rs
@@ -307,7 +307,7 @@ impl TryFrom<SummaryWithQuery> for Summary {
             parameters,
         } = summary;
         let mut summary: Self = (*summary).clone().try_into()?;
-        summary.query.text = (*query).clone();
+        summary.query.text.clone_from(&*query);
         summary.query.parameters = (*parameters)
             .clone()
             .unwrap_or_default()