Merge latest master

beacon_node/eth1/src/service.rs

@@ -633,6 +633,36 @@ impl Service {
             );
         }
 
+        let block_cache = self.inner.block_cache.read();
+        let latest_block_mins = block_cache
+            .latest_block_timestamp()
+            .and_then(|timestamp| {
+                SystemTime::now()
+                    .duration_since(UNIX_EPOCH)
+                    .ok()
+                    .and_then(|now| now.checked_sub(Duration::from_secs(timestamp)))
+            })
+            .map(|duration| format!("{} mins", duration.as_secs() / 60))
+            .unwrap_or_else(|| "n/a".into());
+
+        if blocks_imported > 0 {
+            debug!(
+                self.log,
+                "Imported eth1 block(s)";
+                "latest_block_age" => latest_block_mins,
+                "latest_block" => block_cache.highest_block_number(),
+                "total_cached_blocks" => block_cache.len(),
+                "new" => blocks_imported
+            );
+        } else {
+            debug!(
+                self.log,
+                "No new eth1 blocks imported";
+                "latest_block" => block_cache.highest_block_number(),
+                "cached_blocks" => block_cache.len(),
+            );
+        }
+
         Ok(BlockCacheUpdateOutcome {
             blocks_imported,
             head_block_number: self.inner.block_cache.read().highest_block_number(),