Move tests from tests/ghc-regress/* to just tests/*
[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 -XGeneralizedNewtypeDeriving for GHC's newtype-deriving extension
6     In the stand-alone deriving instance for `Monoid (DecodeMap e)'