final PrintStream stream = useStdout() ? System.out : new PrintStream(outputBuffer, true, Charset.defaultCharset().name())
        BuildLogger antLogger = makeLogger(stream, outputLevel)

        ant.project.addBuildListener(antLogger)
        try {
            runAnt(ant)
        } catch (Exception e) {
            // ant failed, so see if we have buffered output to emit, then rethrow the failure