diff --git a/core/lib/Drupal/Core/Cache/MemoryBackend.php b/core/lib/Drupal/Core/Cache/MemoryBackend.php
index 23fddc5..f0e931b 100644
--- a/core/lib/Drupal/Core/Cache/MemoryBackend.php
+++ b/core/lib/Drupal/Core/Cache/MemoryBackend.php
@@ -208,6 +208,8 @@ public function garbageCollection() {
   /**
    * {@inheritdoc}
    */
-  public function removeBin() {}
+  public function removeBin() {
+    $this->cache = [];
+  }
 
 }