tst_Snippets::verify(qtquickcontrols2-combobox-custom) 'warnings.isEmpty()' returned FALSE. ()

agent:2019/08/20 10:06:55 build.go:215: /home/qt/work/qt/qtquickcontrols2/tests/auto/snippets/target_wrapper.sh  ./tst_snippets -o /home/qt/work/testresults/tests/auto/snippets643536489,xml -o -,txt
agent:2019/08/20 10:06:55 build.go:215: ********* Start testing of tst_Snippets *********
agent:2019/08/20 10:06:55 build.go:215: Config: Using QtTest library 5.14.0, Qt 5.14.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 8.2.0)
agent:2019/08/20 10:06:55 build.go:215: QINFO  : tst_Snippets::initTestCase() Snippets are taken from /home/qt/work/qt/qtquickcontrols2/src/imports/controls/doc/snippets
agent:2019/08/20 10:06:55 build.go:215: PASS   : tst_Snippets::initTestCase()
agent:2019/08/20 10:06:55 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-action)
agent:2019/08/20 10:06:55 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-busyindicator-custom)
agent:2019/08/20 10:06:55 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-button-custom)
agent:2019/08/20 10:06:55 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-button-icononly)
agent:2019/08/20 10:06:55 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-button-textbesideicon)
agent:2019/08/20 10:06:55 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-button-textonly)
agent:2019/08/20 10:06:56 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-checkbox-custom)
agent:2019/08/20 10:06:56 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-checkbox-group)
agent:2019/08/20 10:06:56 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-checkdelegate-custom)
agent:2019/08/20 10:06:56 build.go:215: QWARN  : tst_Snippets::verify(qtquickcontrols2-combobox-custom) file:///home/qt/work/qt/qtquickcontrols2/src/imports/controls/doc/snippets/qtquickcontrols2-combobox-custom.qml:56:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
agent:2019/08/20 10:06:56 build.go:215: FAIL!  : tst_Snippets::verify(qtquickcontrols2-combobox-custom) 'warnings.isEmpty()' returned FALSE. ()
agent:2019/08/20 10:06:56 build.go:215:    Loc: [tst_snippets.cpp(112)]
agent:2019/08/20 10:06:56 build.go:215: PASS   : tst_Snippets::verify(qtquickcontrols2-combobox-valuerole)
agent:2019/08/20 10:06:56 build.go:215: QWARN  : tst_Snippets::verify(qtquickcontrols2-delaybutton-custom) file:///home/qt/work/qt/qtquickcontrols2/src/imports/controls/doc/snippets/qtquickcontrols2-delaybutton-custom.qml:63:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
agent:2019/08/20 10:06:56 build.go:215: FAIL!  : tst_Snippets::verify(qtquickcontrols2-delaybutton-custom) 'warnings.isEmpty()' returned FALSE. ()
agent:2019/08/20 10:06:56 build.go:215:    Loc: [tst_snippets.cpp(112)]
...