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