1 error[E0277]: expected a `FnOnce<()>` closure, found `{integer}`
2 --> $DIR/closure-expected.rs:3:23
4 LL | let y = x.or_else(4);
5 | ------- ^ expected an `FnOnce<()>` closure, found `{integer}`
7 | required by a bound introduced by this call
9 = help: the trait `FnOnce<()>` is not implemented for `{integer}`
10 = note: wrap the `{integer}` in a closure with no arguments: `|| { /* code */ }`
11 note: required by a bound in `Option::<T>::or_else`
12 --> $SRC_DIR/core/src/option.rs:LL:COL
14 LL | F: ~const FnOnce() -> Option<T>,
15 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Option::<T>::or_else`
17 error: aborting due to previous error
19 For more information about this error, try `rustc --explain E0277`.