diff --git a/core/lib/Drupal/Component/DependencyInjection/Container.php b/core/lib/Drupal/Component/DependencyInjection/Container.php
index df25ae8..0b3eb70 100644
--- a/core/lib/Drupal/Component/DependencyInjection/Container.php
+++ b/core/lib/Drupal/Component/DependencyInjection/Container.php
@@ -626,4 +626,11 @@ public function getServiceIds() {
     return array_keys($this->serviceDefinitions + $this->services);
   }
 
+  /**
+   * @inheritDoc
+   */
+  private function __clone() {
+    throw new \Exception('Can not clone the container');
+  }
+
 }
diff --git a/core/modules/simpletest/src/TestBase.php b/core/modules/simpletest/src/TestBase.php
index a4c115f..b255dea 100644
--- a/core/modules/simpletest/src/TestBase.php
+++ b/core/modules/simpletest/src/TestBase.php
@@ -1194,7 +1194,7 @@ private function prepareEnvironment() {
     $this->originalConf = isset($GLOBALS['conf']) ? $GLOBALS['conf'] : NULL;
 
     // Backup statics and globals.
-    $this->originalContainer = clone \Drupal::getContainer();
+    $this->originalContainer = \Drupal::getContainer();
     $this->originalLanguage = $language_interface;
     $this->originalConfigDirectories = $GLOBALS['config_directories'];