qtivi tests fails against Qt 5.12.4

/Developer/SDKs/MacOSX10.13.sdk/usr/include tst_qiviproperty.cpp -o .moc/tst_qiviproperty.moc
agent:2019/06/12 05:58:16 build.go:197: /bin/sh: /Users/qt/work/install/bin/ivigenerator/qtivi_qface_virtualenv/bin/python: No such file or directory
agent:2019/06/12 05:58:16 build.go:197: make[3]: *** [ivivehiclefunctions.pri] Error 127
agent:2019/06/12 05:58:16 build.go:197: make[2]: *** [sub-basic-make_first] Error 2
agent:2019/06/12 05:58:16 build.go:197: make[1]: *** [sub-vehiclefunctions-make_first] Error 2
agent:2019/06/12 05:58:16 build.go:197: make[1]: *** Waiting for unfinished jobs....
agent:2019/06/12 05:58:16 build.go:197: cd qiviabstractfeature/ && ( test -e Makefile || /Users/qt/work/install/bin/qmake -o Makefile /Users/qt/work/qt/qtivi/tes

Build log: https://testresults.qt.io/logs/qt/qtivi/888b3b9355b38fd2da03214b4714be899ba3b3c7/MacOSMacOS_10_12x86_64MacOSMacOS_10_12x86_64Clangqtci-macos-10.12-x86_64-9-2ca8fb/ff020cf1666a118a2f3885610530b271e37f3187/test_1560321155/log.txt.gz

Details: http://ci-files01-hki.intra.qt.io:8080/coin/integration/qt/tqtc-qt5/tasks/1560319467
Tested changes (refs/builds/qtci/tqtc/5.12.4/1560318431):
https://codereview.qt-project.org/#/q/269dfcac44ce476fbf1211c3138a0eb29bb85bd7,n,z Merge remote-tracking branch 'origin/5.12.4' into tqtc/5.12.4