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warning: impl trait in impl method signature does not match trait method signature
--> $DIR/async-example-desugared-manual.rs:22:22
|
LL | async fn foo(&self) -> i32;
| --------------------------- return type from trait method defined here
...
LL | fn foo(&self) -> MyFuture {
| ^^^^^^^^
|
= note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
note: the lint level is defined here
--> $DIR/async-example-desugared-manual.rs:21:12
|
LL | #[warn(refining_impl_trait)]
| ^^^^^^^^^^^^^^^^^^^
help: replace the return type so that it matches the trait
|
LL | fn foo(&self) -> impl Future<Output = i32> {
| ~~~~~~~~~~~~~~~~~~~~~~~~~
warning: 1 warning emitted
|
