If Button is used as delegate of ListView then application fails

import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Controls 2.15

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")
    ListView {
        anchors.fill: parent
        model: 100
        delegate: Button {
            text: model.index
        }
    }
}