src/test/ui/nll/capture-mut-ref.rs

   1 // run-rustfix
   2
   3 // Check that capturing a mutable reference by move and assigning to its
   4 // referent doesn't make the unused mut lint think that it is mutable.
   5
   6 #![deny(unused_mut)]
   7
   8 pub fn mutable_upvar() {
   9     let mut x = &mut 0;
  10     //~^ ERROR
  11     let _ = move || {
  12         *x = 1;
  13     };
  14 }
  15
  16 fn main() {}