diff -u b/core/includes/module.inc b/core/includes/module.inc
--- b/core/includes/module.inc
+++ b/core/includes/module.inc
@@ -602,7 +602,7 @@
                   }
                 }
                 catch (Exception $e) {
-                  watchdog(WATCHDOG_ERROR, 'Failed to remove cache bin defined by the service %id.', array('%id' => $id));
+                  watchdog_exception('system', $e, 'Failed to remove cache bin defined by the service %id.', array('%id' => $id));
                 }
               }
             }