add logging

main.py

@@ -24,8 +24,9 @@ dp = Dispatcher(bot)
 
 
 async def check_updates():
-
+    logging.warning('Waiting for lock...')
     async with redis.lock('e621:update'):
+        logging.warning('Lock acquired...')
         tag_list = [t.decode() for t in await redis.smembers('e621:subs')]
         tag_list.sort()
         for tl_idx in range(0, len(tag_list), 40):