tst_PropertyRequirements::constantOrNotifyableMain() crashes on Ubuntu 18.04

********* Start testing of tst_PropertyRequirements *********
Config: Using QtTest library 5.12.0, Qt 5.12.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 7.3.0)
PASS   : tst_PropertyRequirements::initTestCase()
QFATAL : tst_PropertyRequirements::constantOrNotifyableMain() ASSERT: "!isEmpty()" in file /home/mitch/dev/qt5.12-debug/qtbase/include/QtCore/../../../../qt5.12/qtbase/src/corelib/tools/qlist.h, line 347
FAIL!  : tst_PropertyRequirements::constantOrNotifyableMain() Received a fatal error.
   Loc: [Unknown file(0)]
Totals: 1 passed, 1 failed, 0 skipped, 0 blacklisted, 185ms
********* Finished testing of tst_PropertyRequirements *********

1  __GI_raise                                         raise.c                      51   0x7ffff3039e97 
2  __GI_abort                                         abort.c                      79   0x7ffff303b801 
3  qt_message_fatal                                   qlogging.cpp                 1903 0x7ffff3afb63e 
4  QMessageLogger::fatal                              qlogging.cpp                 887  0x7ffff3afd3fa 
5  qt_assert                                          qglobal.cpp                  3199 0x7ffff3ae4e85 
6  QList<QMetaObject const *>::first                  qlist.h                      347  0x555555564844 
7  tst_PropertyRequirements::testQmlType              tst_propertyrequirements.cpp 178  0x55555555e784 
8  tst_PropertyRequirements::testAllQmlTypes          tst_propertyrequirements.cpp 159  0x55555555e084 
9  tst_PropertyRequirements::constantOrNotifyableMain tst_propertyrequirements.cpp 77   0x55555555c1dd 
10 tst_PropertyRequirements::qt_static_metacall       tst_propertyrequirements.moc 75   0x55555555f196 
11 QMetaMethod::invoke                                qmetaobject.cpp              2304 0x7ffff4163fe7 
12 QMetaMethod::invoke                                qmetaobject.h                123  0x7ffff7f1a113 
13 QTest::TestMethods::invokeTestOnData               qtestcase.cpp                915  0x7ffff7f1a113 
14 QTest::TestMethods::invokeTest                     qtestcase.cpp                1114 0x7ffff7f1d5d5 
15 QTest::TestMethods::invokeTests                    qtestcase.cpp                1456 0x7ffff7f1f58d 
16 QTest::qRun                                        qtestcase.cpp                1896 0x7ffff7f211ab 
17 QTest::qExec                                       qtestcase.cpp                1783 0x7ffff7f2162f 
18 main                                               tst_propertyrequirements.cpp 201  0x55555555f09a