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Resolving dependencies...
Starting     syb-0.7.1
Building     syb-0.7.1
Completed    syb-0.7.1
Starting     algebraic-classes-0.9.4
Building     algebraic-classes-0.9.4
Failed to install algebraic-classes-0.9.4
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/algebraic-classes-0.9.4-BKOihomhW6s116uLQ3KW3.log ):
cabal: Entering directory '/tmp/cabal-tmp-3140/algebraic-classes-0.9.4'
Configuring algebraic-classes-0.9.4...
Preprocessing library for algebraic-classes-0.9.4..
Building library for algebraic-classes-0.9.4..
[1 of 3] Compiling Data.Algebra.Internal ( Data/Algebra/Internal.hs, dist/build/Data/Algebra/Internal.o )
[2 of 3] Compiling Data.Algebra.TH  ( Data/Algebra/TH.hs, dist/build/Data/Algebra/TH.o )

Data/Algebra/TH.hs:224:46: error:
    • Couldn't match expected type ‘Dec’
                  with actual type ‘TySynEqn -> Dec’
    • Probable cause: ‘sigTFInst’ is applied to too few arguments
      In the expression: sigTFInst
      In the expression: [asInst, showInst, sigTFInst]
      In an equation for ‘signatureInstances’:
          signatureInstances nm s
            = [asInst, showInst, sigTFInst]
            where
                signature = ConT (signatureName s)
                sigTFInst
                  = TySynInstD
                      (TySynEqn Nothing (AppT (ConT ''Signature) (ConT nm)) signature)
                typeInst
                  = TySynInstD
                      (TySynEqn Nothing (AppT (ConT ''Class) signature) (ConT nm))
                asClauses
                  = [Clause
                       [...]
                       (NormalB (foldl (\ e arg -> AppE e (VarE arg)) (VarE fName) args))
                       [] |
                       OperationTH fName opName ar _ _ <- operations s, let ...]
                ....
    |
224 | signatureInstances nm s = [asInst, showInst, sigTFInst]
    |                                              ^^^^^^^^^

Data/Algebra/TH.hs:227:29: error:
    • Couldn't match expected type ‘Type -> Name’
                  with actual type ‘TySynEqn’
    • The function ‘TySynEqn’ is applied to three arguments,
      but its type ‘[Type] -> Type -> TySynEqn’ has only two
      In the first argument of ‘TySynInstD’, namely
        ‘(TySynEqn Nothing (AppT (ConT ''Signature) (ConT nm)) signature)’
      In the expression:
        TySynInstD
          (TySynEqn Nothing (AppT (ConT ''Signature) (ConT nm)) signature)
    |
227 |     sigTFInst = TySynInstD (TySynEqn Nothing (AppT (ConT ''Signature) (ConT nm)) signature)
    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Data/Algebra/TH.hs:227:38: error:
    • Couldn't match expected type ‘[Type]’ with actual type ‘Maybe a0’
    • In the first argument of ‘TySynEqn’, namely ‘Nothing’
      In the first argument of ‘TySynInstD’, namely
        ‘(TySynEqn Nothing (AppT (ConT ''Signature) (ConT nm)) signature)’
      In the expression:
        TySynInstD
          (TySynEqn Nothing (AppT (ConT ''Signature) (ConT nm)) signature)
    |
227 |     sigTFInst = TySynInstD (TySynEqn Nothing (AppT (ConT ''Signature) (ConT nm)) signature)
    |                                      ^^^^^^^

Data/Algebra/TH.hs:228:28: error:
    • Couldn't match expected type ‘Type -> Name’
                  with actual type ‘TySynEqn’
    • The function ‘TySynEqn’ is applied to three arguments,
      but its type ‘[Type] -> Type -> TySynEqn’ has only two
      In the first argument of ‘TySynInstD’, namely
        ‘(TySynEqn Nothing (AppT (ConT ''Class) signature) (ConT nm))’
      In the expression:
        TySynInstD
          (TySynEqn Nothing (AppT (ConT ''Class) signature) (ConT nm))
    |
228 |     typeInst = TySynInstD (TySynEqn Nothing (AppT (ConT ''Class) signature) (ConT nm))
    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Data/Algebra/TH.hs:228:37: error:
    • Couldn't match expected type ‘[Type]’ with actual type ‘Maybe a1’
    • In the first argument of ‘TySynEqn’, namely ‘Nothing’
      In the first argument of ‘TySynInstD’, namely
        ‘(TySynEqn Nothing (AppT (ConT ''Class) signature) (ConT nm))’
      In the expression:
        TySynInstD
          (TySynEqn Nothing (AppT (ConT ''Class) signature) (ConT nm))
    |
228 |     typeInst = TySynInstD (TySynEqn Nothing (AppT (ConT ''Class) signature) (ConT nm))
    |                                     ^^^^^^^

Data/Algebra/TH.hs:235:79: error:
    • Couldn't match expected type ‘Dec’
                  with actual type ‘TySynEqn -> Dec’
    • Probable cause: ‘typeInst’ is applied to too few arguments
      In the expression: typeInst
      In the fourth argument of ‘InstanceD’, namely
        ‘[typeInst, FunD 'evaluate (asClauses ++ asScClauses)]’
      In the expression:
        InstanceD
          Nothing
          []
          (AppT (ConT ''AlgebraSignature) signature)
          [typeInst, FunD 'evaluate (asClauses ++ asScClauses)]
    |
235 |     asInst = InstanceD Nothing [] (AppT (ConT ''AlgebraSignature) signature) [typeInst, FunD 'evaluate (asClauses ++ asScClauses)]
    |                                                                               ^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-3140/algebraic-classes-0.9.4'
cabal: Error: some packages failed to install:
algebraic-classes-0.9.4-BKOihomhW6s116uLQ3KW3 failed during the building
phase. The exception was:
ExitFailure 1