RS.CLIPPY.REDUNDANT_ASYNC_BLOCK

`async { future.await }` can be replaced by `future`

This checker is a Clippy lint created by The Rust Project Contributors. The documentation shown here is a copy of the original documentation for: redundant_async_block. Copyright ©2025 The Rust Team. All rights reserved.

What it does

Checks for async block that only returns await on a future.

Why is this bad?

It is simpler and more efficient to use the future directly.

Example

let f = async {
    1 + 2
};
let fut = async {
    f.await
};

Use instead:

let f = async {
    1 + 2
};
let fut = f;