4158.out

Error found:
in module [33mMain[0m
at tests/purs/failing/4158.purs:9:10 - 9:11 (line 9, column 10 - line 9, column 11)

  Could not match type
  [33m    [0m
  [33m  a1[0m
  [33m    [0m
  with type
  [33m    [0m
  [33m  b0[0m
  [33m    [0m

while trying to match type [33m{ foo :: Int[0m
                           [33m| a1        [0m
                           [33m}           [0m
  with type [33m{ foo :: Int[0m
            [33m| b0        [0m
            [33m}           [0m
while checking that expression [33mr[0m
  has type [33mMaybe         [0m
           [33m  { foo :: Int[0m
           [33m  | b0        [0m
           [33m  }           [0m
in value declaration [33mevil[0m

where [33ma1[0m is a rigid type variable
        bound at (line 0, column 0 - line 0, column 0)
      [33mb0[0m is a rigid type variable
        bound at (line 0, column 0 - line 0, column 0)

See https://github.com/purescript/documentation/blob/master/errors/TypesDoNotUnify.md for more information,
or to contribute content related to this error.