GenCannotDoRep1_1.hs:1:29: Warning:
    -XDatatypeContexts is deprecated: It was widely considered a misfeature, and has been removed from the Haskell language.

GenCannotDoRep1_1.hs:8:49:
    Can't make a derived instance of ‘Generic1 Context’:
      Context must not have a datatype context
    In the data declaration for ‘Context’