| // Copyright (C) 2017-2021 Free Software Foundation, Inc. | 
 |  | 
 | // This program is free software; you can redistribute it and/or modify | 
 | // it under the terms of the GNU General Public License as published by | 
 | // the Free Software Foundation; either version 3 of the License, or | 
 | // (at your option) any later version. | 
 | // | 
 | // This program is distributed in the hope that it will be useful, | 
 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | 
 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
 | // GNU General Public License for more details. | 
 | // | 
 | // You should have received a copy of the GNU General Public License | 
 | // along with this program.  If not, see <http://www.gnu.org/licenses/>. | 
 |  | 
 | #![allow(dead_code)] | 
 | #![allow(unused_variables)] | 
 | #![allow(unused_assignments)] | 
 |  | 
 | fn main() { | 
 |     let mut y = 7; | 
 |     y = y + 1;                  // set breakpoint here | 
 |     y = y + 1; | 
 | } |