diff --git a/src/concurrent_processor.rs b/src/concurrent_processor.rs
index c018b6c..aa5deff 100644
--- a/src/concurrent_processor.rs
+++ b/src/concurrent_processor.rs
@@ -51,7 +51,7 @@ where
                 vacant.insert(Vec::new());
                 let span = tracing::info_span!(
                     "Processing image",
-                    hash = &tracing::field::debug(&hex::encode(&hash)),
+                    hash = &tracing::field::debug(&hex::encode(hash)),
                     path = &tracing::field::debug(&path),
                     completed = &tracing::field::Empty,
                 );
@@ -64,7 +64,7 @@ where
                 occupied.get_mut().push(tx);
                 let span = tracing::info_span!(
                     "Waiting for processed image",
-                    hash = &tracing::field::debug(&hex::encode(&hash)),
+                    hash = &tracing::field::debug(&hex::encode(hash)),
                     path = &tracing::field::debug(&path),
                 );
                 (Some(rx), span)
@@ -122,7 +122,7 @@ impl Drop for CancelToken {
     fn drop(&mut self) {
         if self.receiver.is_none() {
             let completed = PROCESS_MAP.remove(&self.key).is_none();
-            self.span.record("completed", &completed);
+            self.span.record("completed", completed);
         }
     }
 }
diff --git a/src/store/object_store.rs b/src/store/object_store.rs
index e0d6257..620da5c 100644
--- a/src/store/object_store.rs
+++ b/src/store/object_store.rs
@@ -474,7 +474,7 @@ impl ObjectStore {
                 hasher.update(&bytes);
             }
             let hash = hasher.finalize();
-            let hash_string = base64::encode(&hash);
+            let hash_string = base64::encode(hash);
             drop(guard);
             hash_string
         })