diff --git a/core/dr-pipeline/src/mask.rs b/core/dr-pipeline/src/mask.rs
index 29f752b..1c529b5 100644
--- a/core/dr-pipeline/src/mask.rs
+++ b/core/dr-pipeline/src/mask.rs
@@ -1519,8 +1519,7 @@ mod tests {
             );
         }
         assert!(
-            ids.len() < global.len()
-                || global.iter().all(|op| local_means_something(op.as_ref())),
+            ids.len() < global.len() || global.iter().all(|op| local_means_something(op.as_ref())),
             "the filter dropped nothing, so either it is not running or the \
              chain has nothing left that a layer cannot carry"
         );