/nix/store/aa3iy71xrpkm4xyxzniq43n9qk4ai186-hlint-check.drv

bench/tx-firehose/app/Main.hs:218:34-38: Suggestion: Use underscore
Found:
  21600
Perhaps:
  21_600

bench/tx-generator/src/Cardano/Benchmarking/OuroborosImports.hs:3:1-31: Warning: Unused LANGUAGE pragma
Found:
  {-# LANGUAGE NamedFieldPuns #-}
Perhaps you should remove it.

Unmatched #endif at ./cardano-node/test/Test/Cardano/Node/FilePermissions.hs  at line 50 col 1
cardano-node/test/Test/Cardano/Node/FilePermissions.hs:3:1-34: Warning: Unused LANGUAGE pragma
Found:
  {-# LANGUAGE OverloadedStrings #-}
Perhaps you should remove it.

cardano-node/test/Test/Cardano/Node/FilePermissions.hs:7:1-33: Warning: Unused LANGUAGE pragma
Found:
  {-# LANGUAGE TypeApplications #-}
Perhaps you should remove it.

cardano-node/test/Test/Cardano/Node/FilePermissions.hs:24:1-37: Warning: Use fewer imports
Found:
  import Control.Monad.Except
  import Control.Monad.Except ( runExceptT )
  
Perhaps:
  import Control.Monad.Except
  

cardano-node/test/Test/Cardano/Node/FilePermissions.hs:32:1-30: Warning: Use fewer imports
Found:
  import Data.Foldable
  import Data.Foldable ( foldl', length )
  
Perhaps:
  import Data.Foldable
  

6 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) #-}