tst_QQuickApplicationWindow::font() crash on macOS 10.13

agent:2018/08/20 10:12:14 build.go:187: /Users/qt/work/qt/qtquickcontrols2/tests/auto/qquickapplicationwindow/target_wrapper.sh  ./tst_qquickapplicationwindow -o /Users/qt/work/testresults/tests/auto/qquickapplicationwindow947786818,xml -o -,txt
agent:2018/08/20 10:12:15 build.go:187: ********* Start testing of tst_QQuickApplicationWindow *********
agent:2018/08/20 10:12:15 build.go:187: Config: Using QtTest library 5.12.0, Qt 5.12.0 (x86_64-little_endian-lp64 shared (dynamic) release build; by Clang 9.1.0 (clang-902.0.39.1) (Apple))
agent:2018/08/20 10:12:15 build.go:187: PASS   : tst_QQuickApplicationWindow::initTestCase()
agent:2018/08/20 10:12:15 build.go:187: PASS   : tst_QQuickApplicationWindow::qmlCreation()
agent:2018/08/20 10:12:15 build.go:187: PASS   : tst_QQuickApplicationWindow::activeFocusOnTab1()
agent:2018/08/20 10:12:15 build.go:187: PASS   : tst_QQuickApplicationWindow::activeFocusOnTab2()
agent:2018/08/20 10:12:15 build.go:187: PASS   : tst_QQuickApplicationWindow::defaultFocus()
agent:2018/08/20 10:12:15 build.go:187: PASS   : tst_QQuickApplicationWindow::implicitFill()
agent:2018/08/20 10:12:15 build.go:187: PASS   : tst_QQuickApplicationWindow::attachedProperties()
agent:2018/08/20 10:12:16 build.go:187: 
agent:2018/08/20 10:12:16 build.go:187: === Received signal at function time: 95ms, total time: 730ms, dumping stack ===
agent:2018/08/20 10:12:16 build.go:187: (lldb) process attach --pid 2313
agent:2018/08/20 10:12:20 build.go:187: Process 2313 stopped
agent:2018/08/20 10:12:20 build.go:187: * thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
agent:2018/08/20 10:12:20 build.go:187:     frame #0: 0x00007fff5ec7524a libsystem_kernel.dylib`__wait4_nocancel + 10
agent:2018/08/20 10:12:20 build.go:187: libsystem_kernel.dylib`__wait4_nocancel:
agent:2018/08/20 10:12:20 build.go:187: ->  0x7fff5ec7524a <+10>: jae    0x7fff5ec75254            ; <+20>
agent:2018/08/20 10:12:20 build.go:187:     0x7fff5ec7524c <+12>: movq   %rax, %rdi
agent:2018/08/20 10:12:20 build.go:187:     0x7fff5ec7524f <+15>: jmp    0x7fff5ec6bb00            ; cerror_nocancel
agent:2018/08/20 10:12:20 build.go:187:     0x7fff5ec75254 <+20>: retq   
agent:2018/08/20 10:12:20 build.go:187: Target 0: (tst_qquickapplicationwindow) stopped.
agent:2018/08/20 10:12:20 build.go:187: 
agent:2018/08/20 10:12:20 build.go:187: Executable module set to "/Users/qt/work/qt/qtquickcontrols2/tests/auto/qquickapplicationwindow/tst_qquickapplicationwindow".
agent:2018/08/20 10:12:20 build.go:187: Architecture set to: x86_64-apple-macosx.
agent:2018/08/20 10:12:20 build.go:187: (lldb) bt all
agent:2018/08/20 10:12:20 build.go:187: * thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
agent:2018/08/20 10:12:20 build.go:187:   * frame #0: 0x00007fff5ec7524a libsystem_kernel.dylib`__wait4_nocancel + 10
agent:2018/08/20 10:12:20 build.go:187:     frame #1: 0x00007fff5ebef9de libsystem_c.dylib`system + 452
agent:2018/08/20 10:12:20 build.go:187:     frame #2: 0x000000010aacfd75 QtTest`___lldb_unnamed_symbol21$$QtTest + 325
agent:2018/08/20 10:12:20 build.go:187:     frame #3: 0x000000010aacfb9f QtTest`___lldb_unnamed_symbol20$$QtTest + 207
agent:2018/08/20 10:12:20 build.go:187:     frame #4: 0x00007fff5ee32f5a libsystem_platform.dylib`_sigtramp + 26
agent:2018/08/20 10:12:20 build.go:187:   thread #2
agent:2018/08/20 10:12:20 build.go:187:     frame #0: 0x00007fff5ec75292 libsystem_kernel.dylib`__workq_kernreturn + 10
agent:2018/08/20 10:12:20 build.go:187:     frame #1: 0x00007fff5ee3c009 libsystem_pthread.dylib`_pthread_wqthread + 1035
agent:2018/08/20 10:12:20 build.go:187:     frame #2: 0x00007fff5ee3bbe9 libsystem_pthread.dylib`start_wqthread + 13
agent:2018/08/20 10:12:20 build.go:187:   thread #3
agent:2018/08/20 10:12:20 build.go:187:     frame #0: 0x00007fff5ec75292 libsystem_kernel.dylib`__workq_kernreturn + 10
agent:2018/08/20 10:12:20 build.go:187:     frame #1: 0x00007fff5ee3c009 libsystem_pthread.dylib`_pthread_wqthread + 1035
agent:2018/08/20 10:12:20 build.go:187:     frame #2: 0x00007fff5ee3bbe9 libsystem_pthread.dylib`start_wqthread + 13
agent:2018/08/20 10:12:20 build.go:187:   thread #4
agent:2018/08/20 10:12:20 build.go:187:     frame #0: 0x00007fff5ec75292 libsystem_kernel.dylib`__workq_kernreturn + 10
agent:2018/08/20 10:12:20 build.go:187:     frame #1: 0x00007fff5ee3c009 libsystem_pthread.dylib`_pthread_wqthread + 1035
agent:2018/08/20 10:12:20 build.go:187:     frame #2: 0x00007fff5ee3bbe9 libsystem_pthread.dylib`start_wqthread + 13
agent:2018/08/20 10:12:20 build.go:187:   thread #5
agent:2018/08/20 10:12:20 build.go:187:     frame #0: 0x00007fff5ec75292 libsystem_kernel.dylib`__workq_kernreturn + 10
agent:2018/08/20 10:12:20 build.go:187:     frame #1: 0x00007fff5ee3c009 libsystem_pthread.dylib`_pthread_wqthread + 1035
agent:2018/08/20 10:12:20 build.go:187:     frame #2: 0x00007fff5ee3bbe9 libsystem_pthread.dylib`start_wqthread + 13
agent:2018/08/20 10:12:20 build.go:187:   thread #6
agent:2018/08/20 10:12:20 build.go:187:     frame #0: 0x00007fff5ec75292 libsystem_kernel.dylib`__workq_kernreturn + 10
agent:2018/08/20 10:12:20 build.go:187:     frame #1: 0x00007fff5ee3c20e libsystem_pthread.dylib`_pthread_wqthread + 1552
agent:2018/08/20 10:12:20 build.go:187:     frame #2: 0x00007fff5ee3bbe9 libsystem_pthread.dylib`start_wqthread + 13
agent:2018/08/20 10:12:20 build.go:187:   thread #7, name = 'QThread'
agent:2018/08/20 10:12:20 build.go:187:     frame #0: 0x00007fff5ec74a1e libsystem_kernel.dylib`__psynch_cvwait + 10
agent:2018/08/20 10:12:20 build.go:187:     frame #1: 0x00007fff5ee3d589 libsystem_pthread.dylib`_pthread_cond_wait + 732
agent:2018/08/20 10:12:20 build.go:187:     frame #2: 0x0000000109fa77bf QtCore`___lldb_unnamed_symbol320$$QtCore + 303
agent:2018/08/20 10:12:20 build.go:187:     frame #3: 0x0000000109fa74ce QtCore`___lldb_unnamed_symbol319$$QtCore + 94
agent:2018/08/20 10:12:20 build.go:187:     frame #4: 0x0000000109fa740c QtCore`QWaitCondition::wait(QMutex*, QDeadlineTimer) + 108
agent:2018/08/20 10:12:20 build.go:187:     frame #5: 0x0000000109fa7394 QtCore`QWaitCondition::wait(QMutex*, unsigned long) + 100
agent:2018/08/20 10:12:20 build.go:187:     frame #6: 0x000000010aad53a5 QtTest`___lldb_unnamed_symbol36$$QtTest + 69
agent:2018/08/20 10:12:20 build.go:187:     frame #7: 0x0000000109fa5dcc QtCore`___lldb_unnamed_symbol310$$QtCore + 332
agent:2018/08/20 10:12:20 build.go:187:     frame #8: 0x00007fff5ee3c661 libsystem_pthread.dylib`_pthread_body + 340
agent:2018/08/20 10:12:20 build.go:187:     frame #9: 0x00007fff5ee3c50d libsystem_pthread.dylib`_pthread_start + 377
agent:2018/08/20 10:12:20 build.go:187:     frame #10: 0x00007fff5ee3bbf9 libsystem_pthread.dylib`thread_start + 13
agent:2018/08/20 10:12:20 build.go:187:   thread #8, name = 'com.apple.NSEventThread'
agent:2018/08/20 10:12:20 build.go:187:     frame #0: 0x00007fff5ec6b20a libsystem_kernel.dylib`mach_msg_trap + 10
agent:2018/08/20 10:12:20 build.go:187:     frame #1: 0x00007fff5ec6a724 libsystem_kernel.dylib`mach_msg + 60
agent:2018/08/20 10:12:20 build.go:187:     frame #2: 0x00007fff36772045 CoreFoundation`__CFRunLoopServiceMachPort + 341
agent:2018/08/20 10:12:20 build.go:187:     frame #3: 0x00007fff36771397 CoreFoundation`__CFRunLoopRun + 1783
agent:2018/08/20 10:12:20 build.go:187:     frame #4: 0x00007fff36770a07 CoreFoundation`CFRunLoopRunSpecific + 487
agent:2018/08/20 10:12:20 build.go:187:     frame #5: 0x00007fff33e3efc4 AppKit`_NSEventThread + 184
agent:2018/08/20 10:12:20 build.go:187:     frame #6: 0x00007fff5ee3c661 libsystem_pthread.dylib`_pthread_body + 340
agent:2018/08/20 10:12:20 build.go:187:     frame #7: 0x00007fff5ee3c50d libsystem_pthread.dylib`_pthread_start + 377
agent:2018/08/20 10:12:20 build.go:187:     frame #8: 0x00007fff5ee3bbf9 libsystem_pthread.dylib`thread_start + 13
agent:2018/08/20 10:12:20 build.go:187:   thread #9, name = 'QQmlThread'
agent:2018/08/20 10:12:20 build.go:187:     frame #0: 0x00007fff5ec760a2 libsystem_kernel.dylib`poll + 10
agent:2018/08/20 10:12:20 build.go:187:     frame #1: 0x000000010a1b6b50 QtCore`qt_safe_poll(pollfd*, unsigned int, timespec const*) + 576
agent:2018/08/20 10:12:20 build.go:187:     frame #2: 0x000000010a1b83c9 QtCore`QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 873
agent:2018/08/20 10:12:20 build.go:187:     frame #3: 0x000000010a15b49e QtCore`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 430
agent:2018/08/20 10:12:20 build.go:187:     frame #4: 0x0000000109f9c8ec QtCore`QThread::exec() + 140
agent:2018/08/20 10:12:20 build.go:187:     frame #5: 0x0000000109c95699 QtQml`___lldb_unnamed_symbol5258$$QtQml + 57
agent:2018/08/20 10:12:20 build.go:187:     frame #6: 0x0000000109fa5dcc QtCore`___lldb_unnamed_symbol310$$QtCore + 332
agent:2018/08/20 10:12:20 build.go:187:     frame #7: 0x00007fff5ee3c661 libsystem_pthread.dylib`_pthread_body + 340
agent:2018/08/20 10:12:20 build.go:187:     frame #8: 0x00007fff5ee3c50d libsystem_pthread.dylib`_pthread_start + 377
agent:2018/08/20 10:12:20 build.go:187:     frame #9: 0x00007fff5ee3bbf9 libsystem_pthread.dylib`thread_start + 13
agent:2018/08/20 10:12:20 build.go:187: (lldb) quit
agent:2018/08/20 10:12:20 build.go:187: === End of stack trace ===
agent:2018/08/20 10:12:20 build.go:187: QFATAL : tst_QQuickApplicationWindow::font() Received signal 11
agent:2018/08/20 10:12:20 build.go:187:          Function time: 95ms Total time: 730ms
agent:2018/08/20 10:12:20 build.go:187: FAIL!  : tst_QQuickApplicationWindow::font() Received a fatal error.
agent:2018/08/20 10:12:20 build.go:187:    Loc: [Unknown file(0)]
agent:2018/08/20 10:12:20 build.go:187: Totals: 7 passed, 1 failed, 0 skipped, 0 blacklisted, 5073ms
agent:2018/08/20 10:12:20 build.go:187: ********* Finished testing of tst_QQuickApplicationWindow *********
agent:2018/08/20 10:12:20 build.go:187: make: *** [check] Abort trap: 6
agent:2018/08/20 10:12:20 build.go:231: Process finished with error: exit status 2
agent:2018/08/20 10:12:20 build.go:190: Error reading from stdout/err: exit status 2