neglected dep update from
r87a6cad20c90:
that rev also forces nightly rust due to https://github.com/rust-lang/rust/issues/23121
#include <QApplication>
#include "mainform.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyWindow *mainWin = new MyWindow;
mainWin->show();
return app.exec();
}