error.txt

   Compiling testproject v0.1.0 (/tmp/testproject)
error[E0599]: no method named `filter_map` found for type `tokio::net::tcp::incoming::Incoming<'_>` in the current scope
 --> src/main.rs:6:29
  |
6 |     rev_listener.incoming().filter_map(|x| x.ok());
  |                             ^^^^^^^^^^ method not found in `tokio::net::tcp::incoming::Incoming<'_>`
  |
  = note: the method `filter_map` exists but the following trait bounds were not satisfied:
          `&mut tokio::net::tcp::incoming::Incoming<'_> : std::iter::Iterator`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0599`.
error: could not compile `testproject`.

To learn more, run the command again with --verbose.

main.rs

use tokio::net::TcpListener;
use std::error::Error;

async fn listen() -> Result<(), Box<dyn Error>> {
    let mut rev_listener = TcpListener::bind("127.0.0.1:8000").await?;
    rev_listener.incoming().filter_map(|x| x.ok());

    Ok(())
}

#[tokio::main]
async fn main() {
    listen().await;
}