Error about rust-vcl HOT 23 CLOSED

        self.lv2.SetParent(self)
            .SetAlign(TAlign::alTop)
            .SetReadOnly(true)
            .SetRowSelect(true)
            .SetViewStyle(TViewStyle::vsIcon)
            .SetLargeImages(&self.imgList)
            .SetOnClick(sid, |cls: &TMainForm, sender: usize|{
                let idx = cls.lv2.ItemIndex();
                if idx != -1 {
                    let item = cls.lv2.Selected();
                    println!("{}, {}", item.Caption(), item.SubItems().Strings(0));
                }
            })
            // 双击删除选中项
            .SetOnDblClick(sid, |cls: &TMainForm, sender: usize|{
                let idx = cls.lv2.ItemIndex();
                if  idx != -1 {
                    cls.lv2.Items().Delete(idx);
                }
            });

        self.lv2.Items().BeginUpdate();
        for i in 0..10 {
            self.lv2.Items().Add()
                .SetImageIndex(0)
                .SetCaption(&format!("{}", i))
                .SubItems().Add(&format!("值：{}", i));
        }
        self.lv2.Items().EndUpdate();

lv2.SetWidth(self.form.Width())

        let message: [char; 5] = ['h', 'e', 'l', 'l', 'o'];
        let mut stream = TMemoryStream::new();
        stream.Write(&message as * const char as usize, 5);
        println!("{}, {:?}", stream.Position(), stream.ToString());
        stream.Free();

            // let sid = Application.getSId(); ???
            Application.SetOnMinimize(sid, |cls: &TApp, sender: usize|{

            })

        let message: [char; 5] = ['h', 'e', 'l', 'l', 'o'];
        let mut stream = TMemoryStream::new();
        stream.Write(
            &message as * const char as usize,
            message.len() as i32 * std::mem::size_of::<char>() as i32
        );
        stream.SetPosition(0);

        let mut read_message: [char; 5] = ['\0'; 5];
        let len = stream.Read(
            &read_message as * const char as usize,
            read_message.len() as i32 * std::mem::size_of::<char>() as i32
        );

impl TMainForm {

    fn build(&self) {
        // ...
        async_std::task::spawn(async {
            println!("initTCP begin");
            initTCP().await;
        });
   }
}

    let app : &TApplication = &Application;
    let inst = app.MainForm().FindChildControl("online").Instance();

    println!("{:?}", TLabel::As(inst).Caption());

struct MyData {
    onlineClientCount: Mutex<usize>,
    clientMap: Mutex<HashMap<SocketAddr, String>>,
}

lazy_static! {
    static ref DATA: MyData = MyData::new();
    static ref APP: TApp  = TApp::new();
}