fix socks5 checking panic

Fixes #661

src/checker.rs

@@ -64,8 +64,19 @@ pub async fn check_all(
     }
 
     while let Some(res) = join_set.join_next().await {
-        res.wrap_err("failed to join proxy checking task")?
-            .wrap_err("proxy checking worker failed")?;
+        match res {
+            Ok(Ok(())) => {}
+            Ok(Err(e)) => {
+                return Err(e).wrap_err("proxy checking task failed");
+            }
+            Err(e) => {
+                if e.is_panic() {
+                    tracing::error!("proxy checking task panicked: {}", e);
+                } else {
+                    tracing::error!("proxy checking task was cancelled: {}", e);
+                }
+            }
+        }
     }
 
     Ok(Arc::into_inner(checked_proxies)

src/main.rs

@@ -161,7 +161,7 @@ async fn main() -> color_eyre::Result<()> {
     drop(http_client);
 
     while let Some(task) = output_dependencies_tasks.join_next().await {
-        task.wrap_err("failed to join output dependencies task")??;
+        task.wrap_err("output dependencies task panicked or was cancelled")??;
     }
     drop(output_dependencies_tasks);
 

src/scraper.rs

@@ -153,8 +153,8 @@ pub async fn scrape_all(
     }
 
     while let Some(res) = join_set.join_next().await {
-        res.wrap_err("failed to join proxy scrape task")?
-            .wrap_err("proxy scrape task failed")?;
+        res.wrap_err("proxy scraping task panicked or was cancelled")?
+            .wrap_err("proxy scraping task failed")?;
     }
 
     Ok(Arc::into_inner(proxies)

src/tui.rs

@@ -78,7 +78,7 @@ impl Tui {
         }
         drop(rx);
         while let Some(task) = join_set.join_next().await {
-            task.wrap_err("failed to join event listener task")?
+            task.wrap_err("event listener task panicked or was cancelled")?
                 .wrap_err("event listener task failed")?;
         }
         Ok(())