trait bound not satified

[CGQAQ]

use async_std::prelude::*;
use async_std::task::block_on;

use reqwest::Client;

async fn run() -> Result<(),()> {
    let mut url = "";
    let res = Client::new().get(url).send().await?;
    let result = res.to_string();


    Ok(())
}

fn main(){
    block_on(run());
}

error[E0277]: the trait bound `std::result::Result<reqwest::response::Response, reqwest::error::Error>: std::future::Future` is not satisfied
   --> src/main.rs:11:15
    |
11  |     let res = Client::new().get(url).send().await?;
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::future::Future` is not implemented for `std::result::Result<reqwest::response::Response, reqwest::error::Error>`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.

what the heck is this error? async function should be return Future of Output = std::result::Result<reqwest::response::Response, reqwest::error::Error>, why don't satisfy?How could I solve this?

[yoshuawuyts]

@CGQAQ to my knowledge reqwest only works with tokio out of the box. If you're looking for a runtime-agnostic HTTP client, surf might be an option.

[CGQAQ]

@CGQAQ to my knowledge reqwest only works with tokio out of the box. If you're looking for a runtime-agnostic HTTP client, surf might be an option.

@yoshuawuyts Thank you very much, I already know whats happend, that's why I closed this issue.
reqwest 0.9.x depends on futures = "0.1.23", I am figured out that version of futures crate probably deprecated, don't work with .await anymore

And I also filed a new issue about this pretty frustrating experience issue page