I previous commit I accidentally run cargo +stable fmt (instead of +nightly) and forgot std:: in one of imports. This commit fixes both problems.

src/dispatching/dispatchers/filter/error_policy.rs

@@ -1,6 +1,5 @@
-// used instead of `!` to be compatible with rust <1.41
+// Infallible used here instead of `!` to be compatible with rust <1.41
-use convert::Infallible;
+use std::{convert::Infallible, future::Future, pin::Pin};
-use std::{future::Future, pin::Pin};
 
 use async_trait::async_trait;
 

src/dispatching/dispatchers/filter/mod.rs

@@ -318,16 +318,12 @@ mod tests {
         let counter2 = &AtomicI32::new(0);
 
         let mut dp = FilterDispatcher::<Infallible, _>::new(|_| async {})
-            .message_handler(true, |_mes: Message| {
+            .message_handler(true, |_mes: Message| async move {
-                async move {
+                counter.fetch_add(1, Ordering::SeqCst);
-                    counter.fetch_add(1, Ordering::SeqCst);
-                }
             })
-            .message_handler(true, |_mes: Message| {
+            .message_handler(true, |_mes: Message| async move {
-                async move {
+                counter2.fetch_add(1, Ordering::SeqCst);
-                    counter2.fetch_add(1, Ordering::SeqCst);
+                Ok::<_, Infallible>(())
-                    Ok::<_, Infallible>(())
-                }
             });
 
         dp.dispatch(one_message_updater()).await;

src/dispatching/updater.rs

@@ -136,19 +136,17 @@ where
 }
 
 pub fn polling<'a>(bot: &'a Bot) -> impl Updater<Error = RequestError> + 'a {
-    let stream = stream::unfold((bot, 0), |(bot, mut offset)| {
+    let stream = stream::unfold((bot, 0), |(bot, mut offset)| async move {
-        async move {
+        let updates = match bot.get_updates().offset(offset).send().await {
-            let updates = match bot.get_updates().offset(offset).send().await {
+            Ok(updates) => {
-                Ok(updates) => {
+                if let Some(upd) = updates.last() {
-                    if let Some(upd) = updates.last() {
+                    offset = upd.id + 1;
-                        offset = upd.id + 1;
-                    }
-                    updates.into_iter().map(Ok).collect::<Vec<_>>()
                 }
-                Err(err) => vec![Err(err)],
+                updates.into_iter().map(Ok).collect::<Vec<_>>()
-            };
+            }
-            Some((stream::iter(updates), (bot, offset)))
+            Err(err) => vec![Err(err)],
-        }
+        };
+        Some((stream::iter(updates), (bot, offset)))
     })
     .flatten();
 

src/network/download.rs

@@ -42,13 +42,11 @@ pub async fn download_file_stream(
         .await?
         .error_for_status()?;
 
-    Ok(futures::stream::unfold(res, |mut res| {
+    Ok(futures::stream::unfold(res, |mut res| async {
-        async {
+        match res.chunk().await {
-            match res.chunk().await {
+            Err(err) => Some((Err(err), res)),
-                Err(err) => Some((Err(err), res)),
+            Ok(Some(c)) => Some((Ok(c), res)),
-                Ok(Some(c)) => Some((Ok(c), res)),
+            Ok(None) => None,
-                Ok(None) => None,
-            }
         }
     }))
 }