Fold testsuite.git into ghc.git (re #8545)
[ghc.git] / testsuite / tests / deriving / should_fail / T3833.stderr
1
2 T3833.hs:9:1:
3     Can't make a derived instance of ‛Monoid (DecodeMap e)’:
4       ‛Monoid’ is not a derivable class
5       Try GeneralizedNewtypeDeriving for GHC's newtype-deriving extension
6     In the stand-alone deriving instance for ‛Monoid (DecodeMap e)’