更改工作区文件夹后出现Jenkins权限错误

我正试图在我的项目中使用詹金斯建立一个CI

完成的步骤

1) 将工作区目录更改为自定义文件夹 /var/jenkins-test/${ITEM_FULLNAME}

2) 源代码管理中正确的repo URL

但我在Jenkins构建之后出现了以下错误

java.io.IOException: Failed to mkdirs: /var/jenkins-test/node-express
    at hudson.FilePath.mkdirs(FilePath.java:1170)
    at hudson.model.AbstractProject.checkout(AbstractProject.java:1200)
    at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:574)
    at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
    at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:499)
    at hudson.model.Run.execute(Run.java:1724)
    at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
    at hudson.model.ResourceController.execute(ResourceController.java:97)
    at hudson.model.Executor.run(Executor.java:421)
Finished: FAILURE