error[E0506]: cannot assign to `*x` because it is borrowed --> $DIR/issue-75785-confusing-named-region.rs:9:5 | LL | pub async fn async_fn(x: &mut i32) -> (&i32, &i32) { | - let's call the lifetime of this reference `'1` LL | let y = &*x; | --- borrow of `*x` occurs here LL | *x += 1; | ^^^^^^^ assignment to borrowed `*x` occurs here LL | (&32, y) | -------- returning this value requires that `*x` is borrowed for `'1` error: aborting due to previous error For more information about this error, try `rustc --explain E0506`.