Auto merge of #84589 - In-line:zircon-thread-name, r=JohnTitor

[rust.git] / src / test / ui / assignment-operator-unimplemented.rs

struct Foo;

fn main() {
  let mut a = Foo;
  let ref b = Foo;
  a += *b; //~ Error: binary assignment operation `+=` cannot be applied to type `Foo`
}