webdriverio: Can't generate Allure report while test failed

Environment (please complete the following information):

• WebdriverIO version: 5.18.7
• Mode: WDIO Testrunner
• If WDIO Testrunner, running sync/async: sync
• Node.js version: 12.16.0
• NPM version: 6.13.4
• Browser name and version: Chrome 80.0.3987.106
• Platform name and version: Windows 10
• Additional wdio packages used (if applicable): @wdio/allure-reporter

Config of WebdriverIO ? Where should your tests be launched? local ? Where is your automation backend located? On my local machine ? Which framework do you want to use? cucumber ? Do you want to run WebdriverIO commands synchronous or asynchronous? sync ? Where are your feature files located? ./features/**/*.feature ? Where are your step definitions located? ./features/step-definitions ? Which reporter do you want to use? spec, allure ? Do you want to add a service to your test setup? chromedriver ? What is the base url? http://localhost

Describe the bug While I run the test successfully, the allure-reporter can generate the xml file. But when the test failed, the allure-reporter didn’t generate any file so that I can’t check the failed test result.

To Reproduce The allure-reporter configure is

reporters: ['spec', ['allure', {
    outputDir: './allure-results',
    useCucumberStepReporter: true
 }]],

Then I run wdio wdio.conf.js. The test failed (This is what I expected), the result xml file not generated (This is not what I expected). Besides, I found some error message may related to this bug

[0-0] 2020-02-18T09:17:34.384Z ERROR @wdio/runner: Error: charData should not contain characters not allowed in XML
    at XmlCharData.set [as charData] (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\xmlcreate\lib\nodes\XmlCharData.js:75:23)
    at new XmlCharData (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\xmlcreate\lib\nodes\XmlCharData.js:53:24)
    at XmlElement.charData (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\xmlcreate\lib\nodes\XmlElement.js:168:28)
    at parseString (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:53:27)
    at parseValue (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:227:5)
    at parseObjectOrMapEntry (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:132:5)
    at parseObjectOrMap (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:152:13)
    at parseValue (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:220:9)
    at parseObjectOrMapEntry (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:132:5)
    at parseObjectOrMap (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:152:13)
    at parseValue (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:220:9)
    at D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:192:9
    at Array.forEach (<anonymous>)
    at parseArrayOrSet (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:187:16)
    at parseValue (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:224:9)
    at parseObjectOrMapEntry (D:\c\Desktop\ProgramProject\HTML\Homework\HW-5\node_modules\js2xmlparser\lib\main.js:132:5)
[0-0] Error: charData should not contain characters not allowed in XML

Expected behavior When test failed, allure-reporter should also generate the result xml file.

Log Full log is here Sorry for containing some Chinese words in the log.

Additional context Nope

Please use the correct markdown