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warning: unused output of future returned by `hey` that must be used --> example.rs:7:5 | 7 | hey().await; | ^^^^^^^^^^^

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warning: unused output of future returned by `hey` that must be used --> example.rs:7:5 | 7 | hey().await; | ^^^^^^^^^^^
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Mara (mara@hachyderm.io)'s status on Tuesday, 14-Mar-2023 22:52:21 JST Mara
in reply to

A must_use attribute on async functions now does what you expect.
#[must_use]
async fn hey() -> Thing { … }
Now, #[must_use] applies to `Thing`, instead of to the `impl Future<Output=Thing>` (which wasn't very useful).
2/6

In conversation Tuesday, 14-Mar-2023 22:52:21 JST from hachyderm.io permalink