diff --git a/tokio/src/runtime/time/entry.rs b/tokio/src/runtime/time/entry.rs
index 96284122e2c..fac1c06f969 100644
--- a/tokio/src/runtime/time/entry.rs
+++ b/tokio/src/runtime/time/entry.rs
@@ -174,7 +174,10 @@ impl StateCell {
         loop {
             // improve the error message for things like
             // https://github.com/tokio-rs/tokio/issues/3675
-            assert!(cur_state < STATE_MIN_VALUE, "mark_pending called when the timer entry is deregistered or in pending fire");
+            assert!(
+                cur_state < STATE_MIN_VALUE,
+                "mark_pending called when the timer entry is deregistered or in pending fire"
+            );
 
             if cur_state > not_after {
                 break Err(cur_state);