QQuickWidget crash calling 'show'

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);    
    QQuickWidget *view = new QQuickWidget();    
    view->setSource(QUrl(":/Tinta/Resources/qml/rect.qml"));
    view->show();
}

import QtQuick 2.0Rectangle {
    id: page
    width: 320; height: 480
    color: "lightgray"    Text {
        id: helloText
        text: "Hello world!"
        y: 30
        anchors.horizontalCenter: page.horizontalCenter
        font.pointSize: 24; font.bold: true
    }
}