/nix/store/dg9w7dqbqa5ra1sgpjhgyrhhznb4rqih-hlint-check.drv

cardano-db-sync/src/Cardano/DbSync/Block.hs:1:1-29: Warning: Unused LANGUAGE pragma
Found:
  {-# LANGUAGE BangPatterns #-}
Perhaps you should remove it.

cardano-db-sync/src/Cardano/DbSync/Era/Universal/Insert/Grouped.hs:4:1-30: Warning: Unused LANGUAGE pragma
Found:
  {-# LANGUAGE TupleSections #-}
Perhaps you should remove it.

cardano-db-sync/src/Cardano/DbSync/Ledger/Async.hs:71:15-54: Error: Use readTVarIO
Found:
  atomically $ readTVar $ rewardsResult rc
Perhaps:
  readTVarIO (rewardsResult rc)

cardano-db-sync/src/Cardano/DbSync/Threads/Promise.hs:16:16: Error: Parse error: possibly incorrect indentation or mismatched brackets
Found:
    import Database.Persist.Postgresql (IsolationLevel (..), runSqlConnWithIsolation, withPostgresqlConn)
    
  > data Promise = 
  

cardano-db-sync/src/Cardano/DbSync/Threads/TxInResolve.hs:4:1-33: Warning: Unused LANGUAGE pragma
Found:
  {-# LANGUAGE TypeApplications #-}
Perhaps you should remove it.

5 hints
=====================================================================
Note: to ignore a particular hint (e.g. "Reduce duplication"), write
this in the source file:
{-# ANN module ("HLint: ignore Reduce duplication" :: Text) #-}
You can also apply it just to a particular function, which is better:
{-# ANN funcName ("HLint: ignore Reduce duplication" :: Text) #-}