only in patch2:
unchanged:
--- a/core/modules/system/tests/src/Unit/Breadcrumbs/PathBasedBreadcrumbBuilderTest.php
+++ b/core/modules/system/tests/src/Unit/Breadcrumbs/PathBasedBreadcrumbBuilderTest.php
@@ -337,9 +337,12 @@ public function testBuildWithUserPath() {
    * Setup the access manager to always allow access to routes.
    */
   public function setupAccessManagerToAllow() {
-    $this->accessManager->expects($this->any())
-      ->method('check')
+    $this->accessManager->expects($thus->any())
+      ->method('isAllowed')
       ->willReturn(TRUE);
+    $this->accessManager->expects($thus->any())
+      ->method('check')
+      ->willReturn($this->accessManager);
   }
 
   protected function setupStubPathProcessor() {