logSnapshot = daemons.daemon.log
    }

    String sinceSnapshot() {
        return daemons.daemon.log - logSnapshot
    }

    WorkerExecutorFixture.WorkActionClass getWorkerExecutorThatCanFailUnexpectedly() {
        def executionClass = fixture.workActionThatCreatesFiles
        executionClass.action += """
            if (getParameters().getFiles().contains("poisonPill")) {
                System.exit(127);