Q12020 Crashing autotest: Webengine - qmltests

This error occurs in Ubuntu_18_04 and in openSUSE_15_0

http://coin/coin/integration/qt/qt5/tasks/1580683677

http://coin/coin/api/results/qt/qtwebengine/ee41adcddb4868053830840826fa62abb6411330/LinuxUbuntu_18_04x86_64LinuxUbuntu_18_04x86_64GCCqtci-linux-Ubuntu-18.04-x86_64-ca0cfeDocumentation_OutOfSourceBuild/a6a637bdc7a15b648d8117064e9c5a7c13c5479d/test_1580685381/log.txt.gz

agent:2020/02/03 03:37:33 agent.go:272: Test failed
agent:2020/02/03 03:37:33 agent.go:200: ERROR building: error unmarshalling testlib xml output ('/home/qt/work/testresults/tests/auto/quick/qmltests168418074'): 'XML syntax error on line 398: unexpected EOF'.

external log: 

https://testresults.qt.io/coin/api/results/qt/qtwebengine/ee41adcddb4868053830840826fa62abb6411330/LinuxUbuntu_18_04x86_64LinuxUbuntu_18_04x86_64GCCqtci-linux-Ubuntu-18.04-x86_64-ca0cfeDocumentation_OutOfSourceBuild/a6a637bdc7a15b648d8117064e9c5a7c13c5479d/test_1580685381/log.txt.gz

The wanted action

• Fix the autotest flakiness in all affected versions, not just one. 
• Please delegate this task to a suitable developer

Guidelines for debugging

Please see the internal page https://intranet.qt.io/display/QTRD/Metrics+Guidelines+for+Grafana+Tool+for+Autotests+with+Issues

How to locate the failed flaky test:

Please open the link to the Grafana dashboard showing the failure history of the test:

https://testresults.qt.io/grafana/d/HrvHJIEWz/03-qt-framework-please-fix-these-crashing-tests?orgId=1&from=now-30d&to=now&var-branch=5.15&var-project=qt%2Fqtwebengine&var-testcase=tests%2Fauto%2Fquick%2Fqmltests

Please see the panel List of the recent flaky tests (both passed and failed). Sort it based on the results to see the failed instances. 

Please open the links to the Coin tasks containing the logs. Please see the test section containing state "Error" and open corresponding logs. There are two versions of the links. The first one is for the Qt company internal use allowing you to re-schedule build for debugging. The second one is public, allowing only to browse the logs.

List of the incidents: 

• Incident 1: Qt 5.15: Host openSUSE_15_0, GCC compiler
  • Internal link: http://coin/coin/integration/qt/qt5/tasks/1580683677
  • Public link: https://testresults.qt.io/coin/integration/qt/qt5/tasks/1580683677
• Incident 2: Qt 5.14: Host Ubuntu_18_04, GCC compiler
  • Internal link: http://coin/coin/integration/qt/qt5/tasks/1582407373
  • Public link: https://testresults.qt.io/coin/integration/qt/qt5/tasks/ 1582407373

More incidents can be found from:

https://testresults.qt.io/grafana/d/HrvHJIEWz/03-qt-framework-please-fix-these-crashing-tests?orgId=1&from=now-30d&to=now&var-branch=5.15&var-project=qt%2Fqtwebengine&var-testcase=tests%2Fauto%2Fquick%2Fqmltests

The Coin log shows details and the location of the error message in it. At need, the raw log can be opened to see the entire log at once.