[GOBBLIN-1394] add stacktrace to error log callback dispatcher

Closes #3233 from Will-Lo/add-error-log-callback
diff --git a/gobblin-utility/src/main/java/org/apache/gobblin/util/callbacks/CallbacksDispatcher.java b/gobblin-utility/src/main/java/org/apache/gobblin/util/callbacks/CallbacksDispatcher.java
index 144556c..9942406 100644
--- a/gobblin-utility/src/main/java/org/apache/gobblin/util/callbacks/CallbacksDispatcher.java
+++ b/gobblin-utility/src/main/java/org/apache/gobblin/util/callbacks/CallbacksDispatcher.java
@@ -171,7 +171,7 @@
         res.cancellations.put(listener, cr);
       }
       else if (cr.hasFailed()) {
-        _log.error("Callback error: " + callbacks.get(i) + " on " + listener + ":" + cr.getError());
+        _log.error("Callback error: " + callbacks.get(i) + " on " + listener + ":" + cr.getError(), cr.getError());
         res.failures.put(listener, cr);
       }
       else {