error[E0506]: cannot assign to `x` because it is borrowed --> $DIR/closure-use-spans.rs:5:5 | LL | let y = &x; | -- borrow of `x` occurs here LL | x = 0; | ^^^^^ assignment to borrowed `x` occurs here LL | || *y; | -- borrow later captured here by closure error[E0506]: cannot assign to `x` because it is borrowed --> $DIR/closure-use-spans.rs:11:5 | LL | let y = &mut x; | ------ borrow of `x` occurs here LL | x = 0; | ^^^^^ assignment to borrowed `x` occurs here LL | || *y = 1; | -- borrow later captured here by closure error[E0506]: cannot assign to `x` because it is borrowed --> $DIR/closure-use-spans.rs:17:5 | LL | let y = &x; | -- borrow of `x` occurs here LL | x = 0; | ^^^^^ assignment to borrowed `x` occurs here LL | move || *y; | -- borrow later captured here by closure error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0506`.