当在Jenkins上使用声明性管道时，根据jenkins管道文档，超时块应该中止整个作业。在我的例子中，超时似乎发生在运行一套mocha测试的shell脚本期间，mocha将SIGTERM转换为测试错误。当错误返回到jenkinsfile时，org.jenkinsci.plugins.workflow.steps.FlowInterruptedException错误不再可捕获，并且作业不会放弃。编辑：看起来原因是mocha的并行功能，但不知道如何处理。
下面是mocha（版本9）在超时时抛出的错误。

1) Uncaught error outside test suite:
     Uncaught Workerpool Worker terminated Unexpectedly
    exitCode: `null`
    signalCode: `SIGTERM`
    workerpool.script: `/var/lib/jenkins/workspace/jobName/path/node_modules/mocha/lib/nodejs/worker.js`
    spawnArgs: `/var/lib/jenkins/tools/jenkins.plugins.nodejs.tools.NodeJSInstallation/Node12.14.0/bin/node,/var/lib/jenkins/workspace/jobName/path/node_modules/mocha/lib/nodejs/worker.js`
    spawnfile: `/var/lib/jenkins/tools/jenkins.plugins.nodejs.tools.NodeJSInstallation/Node12.14.0/bin/node`
    stdout: `null`
    stderr: `null`

  Error: Workerpool Worker terminated Unexpectedly
      exitCode: `null`
      signalCode: `SIGTERM`
      spawnfile: `/var/lib/jenkins/tools/jenkins.plugins.nodejs.tools.NodeJSInstallation/Node12.14.0/bin/node`
      stdout: `null`
      stderr: `null`

      at ChildProcess.<anonymous> (node_modules/workerpool/src/WorkerHandler.js:292:13)
      at Process.ChildProcess._handle.onexit (internal/child_process.js:277:12)

下面是正在运行的jenkis文件的示例。

pipeline {
    agent any

    stages {
        stage("run-tests") {
                steps {
                    script {
                        try {
                            timeout (60) {
                               sh "npm run mocha-tests"
                               }
                        } catch (org.jenkinsci.plugins.workflow.steps.FlowInterruptedException e) {
                                echo "interrupt ${e.toString()}"
                        } catch (Throwable e) {
                                echo "regular ${e.toString()}"
                        }
                    }
            }
    }
}

我希望作业在超时时中止。如何确保作业中止？