Fix newest AWS updates failing on localstack

Dockerfile

@@ -1,4 +1,4 @@
-FROM rust:1.71 AS builder
+FROM rust:1.78 AS builder
 WORKDIR /tmp/
 
 # Copy from nearcore:

src/main.rs

@@ -243,13 +243,13 @@ async fn handle_message(
         client.clone(),
         bucket.clone(),
         block_json,
-        format!("{}/block.json", base_key).to_string(),
+        format!("{}/{}/block.json", bucket, base_key).to_string(),
     )
     .await;
 
     // Shards
     for shard in streamer_message.shards.iter() {
-        let key = format!("{}/shard_{}.json", base_key, shard.shard_id);
+        let key = format!("{}/{}/shard_{}.json", bucket, base_key, shard.shard_id);
         let shard_json =
             serde_json::to_value(shard).expect("Failed to serialize IndexerShard to JSON");
         put_object_or_retry(client.clone(), bucket.clone(), shard_json, key).await;
@@ -293,6 +293,7 @@ async fn put_object_or_retry(
                 metrics::RETRY_COUNT.inc();
                 tracing::warn!(
                     target: INDEXER,
+                    ?err,
                     "Failed to put {} to S3, retrying",
                     &filename
                 );