A pipeline that alwayss fail

pipeline {
  agent any
  stages {
    stage('build') {
      steps {
        retry(3) {
          sh '''
            R=$(od -An -N1 -i /dev/random)
            echo trying flakey...
            [ $((R % 3)) -eq 0 ] && exit 1
          '''
        }
        timeout(time: 5, unit: 'SECONDS') {
          sh '''
            R=$(od -An -N1 -i /dev/random)
            sh 'echo trying slow...
                      [ $((R % 3)) -eq 0 ] && sleep 10
          '''
         }
       }
    }
  }
}