Odd unused warning on non pinned item

[LucioFranco]

I'm getting an odd dead_code warning when im obviously using key in the Ready(Ok(svc)) branch. I think this has to do with the pin-project macro.

#[pin_project]
#[derive(Debug)]
struct UnreadyService<K, S, Req> {
    // This is a false positive
	// this is warning that it is unused
    key: Option<K>,
    #[pin]
    cancel: oneshot::Receiver<()>,
    #[pin]
    ready: Ready<S, Req>,
}

impl<K, S: Service<Req>, Req> Future for UnreadyService<K, S, Req> {
    type Output = Result<(K, S), (K, Error<S::Error>)>;

    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
        let me = self.project();

        if let Poll::Ready(Ok(())) = me.cancel.poll(cx) {
            let key = self.key.take().expect("polled after ready");
            return Poll::Ready(Err((key, Error::Canceled)));
        }

        match me.ready.poll(cx) {
            Poll::Pending => Poll::Pending,
            Poll::Ready(Ok(svc)) => {
				// but it is used here
                let key = self.key.take().expect("polled after ready");
                Ok((key, svc)).into()
            }
            Poll::Ready(Err(e)) => {
                let key = self.key.take().expect("polled after ready");
                Err((key, Error::Inner(e))).into()
            }
        }
    }
}

[LucioFranco]

cc @taiki-e

[taiki-e]

@LucioFranco Thanks for the reporting! I think it was probably fixed in #57. I will release the next version soon.

[LucioFranco]

ahhh awesome I should have looked deeper, have to say loving this lib!!!

[taiki-e]

Published 0.4.0-alpha.7. Could you check if the problem has been fixed?

[LucioFranco]

It has, thanks <3