No barline in PDF and sometimes failed

[Allen Choong]

> I'm not top posting.
% When compiling with 2.14.2, it fails with
% Preprocessing graphical objects...throw from within critical section.
% Aborted

% Sometimes is successfully compiled, but the PDF file does not have barline
% This is not happened in 2.12.3

\version "2.12.3"
\score {
        \new Staff {
                <c' e g>2 <f a c'>2 <b d' f>2 <e g b>2
        }
        \layout {}
}