Crash running snippet

$ qmlscene main.qml

#0 0x00007f018d036311 in QQmlPropertyCache::copy (this=0x0, reserve=0) at qml/qqmlpropertycache.cpp:305
#1 0x00007f018d030b33 in QQmlPropertyCache::copyAndReserve (this=0x0, propertyCount=0, methodCount=0, signalCount=0) at qml/qqmlpropertycache.cpp:327
#2 0x00007f018ce5d016 in QQmlPropertyCacheCreator::createMetaObject (this=0x7f0179ad7ac0, objectIndex=3, obj=0x7f01740046c8, baseTypeCache=0x0) at compiler/qqmltypecompiler.cpp:579
#3 0x00007f018ce5cce5 in QQmlPropertyCacheCreator::buildMetaObjectRecursively (this=0x7f0179ad7ac0, objectIndex=3, referencingObjectIndex=1, instantiatingBinding=0x7f0174004698)
at compiler/qqmltypecompiler.cpp:545
#4 0x00007f018ce5cd98 in QQmlPropertyCacheCreator::buildMetaObjectRecursively (this=0x7f0179ad7ac0, objectIndex=1, referencingObjectIndex=0, instantiatingBinding=0x7f01740047c8)
at compiler/qqmltypecompiler.cpp:555
#5 0x00007f018ce5cd98 in QQmlPropertyCacheCreator::buildMetaObjectRecursively (this=0x7f0179ad7ac0, objectIndex=0, referencingObjectIndex=-1, instantiatingBinding=0x0) at compiler/qqmltypecompiler.cpp:555
#6 0x00007f018ce5c5dc in QQmlPropertyCacheCreator::buildMetaObjects (this=0x7f0179ad7ac0) at compiler/qqmltypecompiler.cpp:454
#7 0x00007f018ce5b38f in QQmlTypeCompiler::compile (this=0x7f0179ad7e70) at compiler/qqmltypecompiler.cpp:148
#8 0x00007f018d008a80 in QQmlTypeData::compile (this=0x1e53be0) at qml/qqmltypeloader.cpp:2341
#9 0x00007f018d00768d in QQmlTypeData::done (this=0x1e53be0) at qml/qqmltypeloader.cpp:2164
#10 0x00007f018d000472 in QQmlDataBlob::tryDone (this=0x1e53be0) at qml/qqmltypeloader.cpp:615
#11 0x00007f018d00224a in QQmlDataLoader::setData (this=0x1d8e778, blob=0x1e53be0, d=...) at qml/qqmltypeloader.cpp:1208
#12 0x00007f018d002138 in QQmlDataLoader::setData (this=0x1d8e778, blob=0x1e53be0, file=0x7f0179ad8260) at qml/qqmltypeloader.cpp:1190
#13 0x00007f018d0018f0 in QQmlDataLoader::loadThread (this=0x1d8e778, blob=0x1e53be0) at qml/qqmltypeloader.cpp:1068
#14 0x00007f018d000cc3 in QQmlDataLoaderThread::loadThread (this=0x19df180, b=0x1e53be0) at qml/qqmltypeloader.cpp:816
#15 0x00007f018d00c9cd in void QQmlThread::callMethodInThread<QQmlDataBlob*, QQmlDataBlob*, QQmlDataLoaderThread>(void (QQmlDataLoaderThread::)(QQmlDataBlob), QQmlDataBlob* const&)::I::call(QQmlThread*) (
this=0x1e5aaf0, thread=0x19df180) at ../../include/QtQml/5.3.2/QtQml/private/../../../../../src/qml/qml/ftw/qqmlthread_p.h:160
#16 0x00007f018d07ae28 in QQmlThreadPrivate::threadEvent (this=0x1d8e940) at qml/ftw/qqmlthread.cpp:198
#17 0x00007f018d07abb0 in QQmlThreadPrivate::event (this=0x1d8e940, e=0x1e60010) at qml/ftw/qqmlthread.cpp:136
#18 0x00007f018c4b5996 in QApplicationPrivate::notify_helper (this=0x18fd5a0, receiver=0x1d8e940, e=0x1e60010) at kernel/qapplication.cpp:3522
#19 0x00007f018c4b31de in QApplication::notify (this=0x7fff75c69570, receiver=0x1d8e940, e=0x1e60010) at kernel/qapplication.cpp:2975
#20 0x00007f018b2bb614 in QCoreApplication::notifyInternal (this=0x7fff75c69570, receiver=0x1d8e940, event=0x1e60010) at kernel/qcoreapplication.cpp:935
#21 0x00007f018b2bf24f in QCoreApplication::sendEvent (receiver=0x1d8e940, event=0x1e60010) at kernel/qcoreapplication.h:237
#22 0x00007f018b2bc92d in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1d8cd90) at kernel/qcoreapplication.cpp:1539
#23 0x00007f018b32e425 in QEventDispatcherUNIX::processEvents (this=0x7f01740008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:587
#24 0x00007f018b2b8362 in QEventLoop::processEvents (this=0x7f0179ad8de0, flags=...) at kernel/qeventloop.cpp:136
#25 0x00007f018b2b863b in QEventLoop::exec (this=0x7f0179ad8de0, flags=...) at kernel/qeventloop.cpp:212
#26 0x00007f018b099b62 in QThread::exec (this=0x1d8e940) at thread/qthread.cpp:511