handle bootstrap error

explorer/src/main.rs

@@ -229,11 +229,22 @@ async fn main() -> Result<(), Error> {
     services.push(interrupt_handler);
 
     let (exit_status, remaining_services) = {
-        let bootstrap_status = bootstrap.await;
+        let bootstrap_status = bootstrap
+            .await
+            .context("panic during bootstrap task")
+            .map_err(Error::UnrecoverableError)
+            .and_then(std::convert::identity);
 
         if bootstrap_status.is_ok() {
             let (status, _idx, rest) = future::select_all(services).await;
-            (status, rest)
+
+            (
+                status
+                    .context("task finished with a panic")
+                    .map_err(Error::UnrecoverableError)
+                    .and_then(std::convert::identity),
+                rest,
+            )
         } else {
             (bootstrap_status, services)
         }
@@ -243,10 +254,6 @@ async fn main() -> Result<(), Error> {
 
     let _ = state_tx.send(GlobalState::ShuttingDown);
 
-    let exit_status = exit_status
-        .map_err(|e| Error::UnrecoverableError(e.into()))
-        .and_then(std::convert::identity);
-
     if let Err(error) = exit_status.as_ref() {
         tracing::error!("process finished with error: {:?}", error);
 
@@ -381,7 +388,11 @@ async fn rest_service(mut state: broadcast::Receiver<GlobalState>, settings: Set
         }
     });
 
-    let indexer = indexer_rx.await.unwrap();
+    let indexer = if let Ok(indexer) = indexer_rx.await {
+        indexer
+    } else {
+        return;
+    };
 
     let api = api::filter(
         indexer.db,