Resolving dependencies...
Configuring mtl-2.2.1...
Configuring syb-0.6...
Building mtl-2.2.1...
Building syb-0.6...
Configuring text-1.2.2.1...
Installed syb-0.6
Installed mtl-2.2.1
Building text-1.2.2.1...
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Building parsec-3.1.11...
Installed parsec-3.1.11
Configuring preprocessor-tools-1.0.1...
Building preprocessor-tools-1.0.1...
Installed preprocessor-tools-1.0.1
Configuring ixdopp-0.1.2...
Building ixdopp-0.1.2...
Failed to install ixdopp-0.1.2
Build log ( /home/builder/.cabal/logs/ixdopp-0.1.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-8896/ixdopp-0.1.2'
Configuring ixdopp-0.1.2...
Building ixdopp-0.1.2...
Preprocessing executable 'ixdopp' for ixdopp-0.1.2...
[1 of 1] Compiling Main             ( Main.hs, dist/build/ixdopp/ixdopp-tmp/Main.o )

Main.hs:26:19: error:
    • Couldn't match type ‘[Ast]’ with ‘IO [Ast]’
      Expected type: [Ast] -> IO [Ast]
        Actual type: IO [Ast] -> IO [Ast]
    • In the ‘transformer’ field of a record
      In the expression:
        mempty
          {keywords = [[I "ixdo"]], transformer = everywhere (mkT trans)}
      In an equation for ‘ixdo’:
          ixdo lets
            = mempty
                {keywords = [[I "ixdo"]], transformer = everywhere (mkT trans)}
            where
                trans :: Ast -> Ast
                trans ast@(Block {item = Token {val = "ixdo"}})
                  = case splitSemis (body ast) of {
                      [] -> errorAt ast "ixdo must end with an expression"
                      stms -> foldr stm (parens (last stms)) (init stms) `cloneLoc` ast }
                trans ast = ast
                stm asts rest
                  = case asts of {
                      [b@(Block {item = t, next = Empty})]
                        | val t `elem` ("let" : lets) -> parens ...
                        where
                            ...
                      _ -> parens $ ... }

Main.hs:55:19: error:
    • Couldn't match type ‘[Ast]’ with ‘IO [Ast]’
      Expected type: [Ast] -> IO [Ast]
        Actual type: IO [Ast] -> IO [Ast]
    • In the ‘transformer’ field of a record
      In the expression:
        mempty
          {keywords = [[I "clet", P "in"], [I "clet"]],
           transformer = everywhere (mkT trans)}
      In an equation for ‘clet’:
          clet
            = mempty
                {keywords = [[I "clet", ....], [I "clet"]],
                 transformer = everywhere (mkT trans)}
            where
                trans :: Ast -> Ast
                trans ast@(Block {item = Token {val = "clet"}})
                  = foldr stm Empty (splitSemis (body ast)) `cloneLoc` ast
                trans ast = ast
                stm asts rest
                  = noParens
                    $ case splitVal "=" asts of {
                        Nothing -> errorAt asts "expected = in clet"
                        Just (pat, _, expr) -> quasi "'#1' $ \\ '#2' -> '#3'" ... }

Main.hs:73:19: error:
    • Couldn't match type ‘[Ast]’ with ‘IO [Ast]’
      Expected type: [Ast] -> IO [Ast]
        Actual type: IO [Ast] -> IO [Ast]
    • In the ‘transformer’ field of a record
      In the expression:
        mempty
          {keywords = [[I "llet", P "in"], [I "llet"]],
           transformer = everywhere (mkT trans)}
      In an equation for ‘llet’:
          llet
            = mempty
                {keywords = [[I "llet", ....], [I "llet"]],
                 transformer = everywhere (mkT trans)}
            where
                trans :: Ast -> Ast
                trans ast@(Block {item = Token {val = "llet"}})
                  = foldr stm Empty (splitSemis (body ast)) `cloneLoc` ast
                trans ast = ast
                stm asts rest
                  = noParens
                    $ case splitVal "=" asts of {
                        Nothing -> errorAt asts "expected = in llet"
                        Just (pat, _, expr) -> ... }
                debangifyList pat
                  = case splitBy (valIs ",") pat of {
                      Nothing -> debangify pat
                      Just (a, c, r) -> debangify a ++ c : debangify r }
                ....
cabal: Leaving directory '/tmp/cabal-tmp-8896/ixdopp-0.1.2'
cabal: Error: some packages failed to install:
ixdopp-0.1.2 failed during the building phase. The exception was:
ExitFailure 1