#0  0x00007fc53049cf2b in  () at /usr/lib/libQt5Qml.so.5
#1  0x00007fc5302afdf8 in  () at /usr/lib/libQt5Qml.so.5
#2  0x00007fc5302b0474 in  () at /usr/lib/libQt5Qml.so.5
#3  0x00007fc5302b3390 in QV4::MemoryManager::sweep(bool, void (*)(char const*)) () at /usr/lib/libQt5Qml.so.5
#4  0x00007fc5302b3a4e in  () at /usr/lib/libQt5Qml.so.5
#5  0x00007fc5302b507b in QV4::MemoryManager::allocString(unsigned long) () at /usr/lib/libQt5Qml.so.5
#6  0x00007fc530308a72 in QV4::ExecutionEngine::newString(QString const&) () at /usr/lib/libQt5Qml.so.5
#7  0x00007fc53033f700 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007fc530399496 in QV4::RuntimeHelpers::ordinaryToPrimitive(QV4::ExecutionEngine*, QV4::Object const*, QV4::String*) () at /usr/lib/libQt5Qml.so.5
#9  0x00007fc5303996e5 in QV4::RuntimeHelpers::objectDefaultValue(QV4::Object const*, int) () at /usr/lib/libQt5Qml.so.5
#10 0x00007fc5303a6047 in QV4::Value::toQStringNoThrow() const () at /usr/lib/libQt5Qml.so.5
#11 0x00007fc53031680f in QV4::ExecutionEngine::catchExceptionAsQmlError() () at /usr/lib/libQt5Qml.so.5
#12 0x00007fc5304999eb in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/lib/libQt5Qml.so.5
#13 0x00007fc530499f19 in QQmlBinding::evaluate(bool*) () at /usr/lib/libQt5Qml.so.5
#14 0x00007fc53049a04a in  () at /usr/lib/libQt5Qml.so.5
#15 0x00007fc53049b783 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#16 0x00007fc530478705 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#17 0x00007fc52f6cff90 in  () at /usr/lib/libQt5Core.so.5
#18 0x00007fc52f6d06a7 in  () at /usr/lib/libQt5Core.so.5
#19 0x00007fc52f6d0aa4 in QObject::destroyed(QObject*) () at /usr/lib/libQt5Core.so.5
#20 0x00007fc52f6c6bbc in QObject::~QObject() () at /usr/lib/libQt5Core.so.5
#21 0x00007fc52ee52066 in  () at /usr/lib/libc.so.6
#22 0x00007fc52ee521b0 in  () at /usr/lib/libc.so.6
#23 0x00007fc52ee39857 in  () at /usr/lib/libc.so.6
#24 0x00007fc52ee3990a in __libc_start_main () at /usr/lib/libc.so.6
#25 0x0000557589c7c655 in  ()
#0  0x00007fc53049cf2b in  () at /usr/lib/libQt5Qml.so.5
#1  0x00007fc5302afdf8 in  () at /usr/lib/libQt5Qml.so.5
#2  0x00007fc5302b0474 in  () at /usr/lib/libQt5Qml.so.5
#3  0x00007fc5302b3390 in QV4::MemoryManager::sweep(bool, void (*)(char const*)) () at /usr/lib/libQt5Qml.so.5
#4  0x00007fc5302b3a4e in  () at /usr/lib/libQt5Qml.so.5
#5  0x00007fc5302b507b in QV4::MemoryManager::allocString(unsigned long) () at /usr/lib/libQt5Qml.so.5
#6  0x00007fc530308a72 in QV4::ExecutionEngine::newString(QString const&) () at /usr/lib/libQt5Qml.so.5
#7  0x00007fc53033f700 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007fc530399496 in QV4::RuntimeHelpers::ordinaryToPrimitive(QV4::ExecutionEngine*, QV4::Object const*, QV4::String*) () at /usr/lib/libQt5Qml.so.5
#9  0x00007fc5303996e5 in QV4::RuntimeHelpers::objectDefaultValue(QV4::Object const*, int) () at /usr/lib/libQt5Qml.so.5
#10 0x00007fc5303a6047 in QV4::Value::toQStringNoThrow() const () at /usr/lib/libQt5Qml.so.5
#11 0x00007fc53031680f in QV4::ExecutionEngine::catchExceptionAsQmlError() () at /usr/lib/libQt5Qml.so.5
#12 0x00007fc5304999eb in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/lib/libQt5Qml.so.5
#13 0x00007fc530499f19 in QQmlBinding::evaluate(bool*) () at /usr/lib/libQt5Qml.so.5
#14 0x00007fc53049a04a in  () at /usr/lib/libQt5Qml.so.5
#15 0x00007fc53049b783 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#16 0x00007fc530478705 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#17 0x00007fc52f6cff90 in  () at /usr/lib/libQt5Core.so.5
#18 0x00007fc52f6d06a7 in  () at /usr/lib/libQt5Core.so.5
#19 0x00007fc52f6d0aa4 in QObject::destroyed(QObject*) () at /usr/lib/libQt5Core.so.5
#20 0x00007fc52f6c6bbc in QObject::~QObject() () at /usr/lib/libQt5Core.so.5
#21 0x00007fc52ee52066 in  () at /usr/lib/libc.so.6
#22 0x00007fc52ee521b0 in  () at /usr/lib/libc.so.6
#23 0x00007fc52ee39857 in  () at /usr/lib/libc.so.6
#24 0x00007fc52ee3990a in __libc_start_main () at /usr/lib/libc.so.6
#25 0x0000557589c7c655 in  ()