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// run-rustfix

fn main() {
    let mut x = vec![1usize];
    *x.last_mut().unwrap() = 2;
    //~^ ERROR invalid left-hand side of assignment
    *x.last_mut().unwrap() += 1;
    //~^ ERROR binary assignment operation `+=` cannot be applied to type `&mut usize`

    let y = x.last_mut().unwrap();
    *y = 2;
    //~^ ERROR mismatched types
    *y += 1;
    //~^ ERROR binary assignment operation `+=` cannot be applied to type `&mut usize`
}