drvfail010.hs:6:42:
    Can't make a derived instance of
      `Typeable (A a b c d e f g h i j)':
      `A' must have 7 or fewer arguments
    In the data type declaration for `A'

drvfail010.hs:9:32:
    Can't make a derived instance of `Typeable (B a b)':
      `B' must only have arguments of kind `*'
    In the data type declaration for `B'