private void markBucketProgressAsFailed(BucketId bucket, BucketId subProgress, String message) {
        progress.getToken().addFailedBucket(bucket, subProgress, message);
        progress.getIterator().update(bucket, ProgressToken.FINISHED_BUCKET);
    }
Return whether a (transient) error shall be exempt from visitor
error reporting. This to prevent spamming handlers and output with
errors for things that are happening naturally in the system.
@return true if the error should be reported
documentapi/src/main/java/com/yahoo/documentapi/messagebus/MessageBusVisitorSession.java