• 当前 Bug 的表现（可附上截图）

调用云函数报错

Error: errCode: -404011 cloud function execution error | errMsg: cloud.callFunction:fail requestID dd0170c9-ffa4-11e8-82a4-52540064d067, cloud function service error code -504002, error message Time limit exceeded; at cloud.callFunction api; 

    at new e (WAService.js:1)

    at u (WAService.js:1)

    at Object.t.returnAsFinalCloudSDKError (WAService.js:1)

    at Function.success (WAService.js:1)

    at WAService.js:1

    at _e (WAService.js:1)

    at ht.<anonymous> (WAService.js:1)

    at ht.emit (WAService.js:1)

    at ii (WAService.js:1)

    at WAService.js:1

云函数日志

• 返回结果：

  {"errorCode":-1,"errorMessage":"Time limit exceeded"}

• 
  

• 日志：

  END RequestId: fdf6d9b9-ffa4-11e8-ad6d-5254005d5fdb

  Report RequestId: fdf6d9b9-ffa4-11e8-ad6d-5254005d5fdb Duration:20000ms Memory:256MB MaxMemoryUsed:7.47656MB

• 预期表现

• 复现路径

• 提供一个最简复现 Demo