Resolving dependencies... Starting StateVar-1.2.2 Starting indexed-traversable-0.1.2 Starting call-stack-0.4.0 Starting base-orphans-0.8.6 Building StateVar-1.2.2 Building indexed-traversable-0.1.2 Building call-stack-0.4.0 Building base-orphans-0.8.6 Completed call-stack-0.4.0 Starting parallel-3.2.2.0 Completed StateVar-1.2.2 Starting primitive-0.7.3.0 Building parallel-3.2.2.0 Building primitive-0.7.3.0 Completed indexed-traversable-0.1.2 Starting reflection-2.1.6 Completed parallel-3.2.2.0 Starting safe-0.3.19 Building reflection-2.1.6 Building safe-0.3.19 Completed base-orphans-0.8.6 Starting semigroups-0.20 Building semigroups-0.20 Completed semigroups-0.20 Starting tagged-0.8.6.1 Building tagged-0.8.6.1 Completed safe-0.3.19 Starting th-abstraction-0.4.3.0 Building th-abstraction-0.4.3.0 Completed reflection-2.1.6 Starting transformers-compat-0.7.1 Building transformers-compat-0.7.1 Completed tagged-0.8.6.1 Starting type-equality-1 Building type-equality-1 Completed type-equality-1 Starting void-0.7.3 Building void-0.7.3 Completed void-0.7.3 Starting contravariant-1.5.5 Completed transformers-compat-0.7.1 Starting hashable-1.4.0.2 Completed th-abstraction-0.4.3.0 Starting distributive-0.6.2.1 Building contravariant-1.5.5 Building hashable-1.4.0.2 Building distributive-0.6.2.1 Completed primitive-0.7.3.0 Starting transformers-base-0.4.6 Building transformers-base-0.4.6 Completed transformers-base-0.4.6 Starting errors-2.3.0 Completed distributive-0.6.2.1 Starting vector-0.12.3.1 Completed contravariant-1.5.5 Starting comonad-5.0.8 Building errors-2.3.0 Building vector-0.12.3.1 Building comonad-5.0.8 Completed hashable-1.4.0.2 Starting unordered-containers-0.2.16.0 Building unordered-containers-0.2.16.0 Completed errors-2.3.0 Starting constraints-0.13.3 Building constraints-0.13.3 Completed comonad-5.0.8 Starting OneTuple-0.3.1 Building OneTuple-0.3.1 Completed OneTuple-0.3.1 Starting bifunctors-5.5.11 Building bifunctors-5.5.11 Completed constraints-0.13.3 Completed unordered-containers-0.2.16.0 Completed bifunctors-5.5.11 Starting assoc-1.0.2 Starting profunctors-5.6.2 Starting semigroupoids-5.3.7 Building assoc-1.0.2 Building profunctors-5.6.2 Building semigroupoids-5.3.7 Completed assoc-1.0.2 Starting these-1.1.1.1 Building these-1.1.1.1 Completed these-1.1.1.1 Starting strict-0.4.0.1 Building strict-0.4.0.1 Completed profunctors-5.6.2 Starting invariant-0.5.5 Building invariant-0.5.5 Completed strict-0.4.0.1 Completed semigroupoids-5.3.7 Starting either-5.0.1.1 Starting free-5.1.7 Building either-5.0.1.1 Building free-5.1.7 Completed either-5.0.1.1 Completed vector-0.12.3.1 Starting indexed-traversable-instances-0.1.1 Building indexed-traversable-instances-0.1.1 Completed invariant-0.5.5 Completed indexed-traversable-instances-0.1.1 Completed free-5.1.7 Starting adjunctions-4.4 Building adjunctions-4.4 Completed adjunctions-4.4 Starting kan-extensions-5.2.3 Building kan-extensions-5.2.3 Completed kan-extensions-5.2.3 Starting lens-5.1 Building lens-5.1 Completed lens-5.1 Starting yaya-0.4.1.0 Building yaya-0.4.1.0 Failed to install yaya-0.4.1.0 Build log ( /home/builder/.cabal/logs/ghc-8.10.2/yaya-0.4.1.0-CVTYXNtc5XsEwWfzKE7sc9.log ): cabal: Entering directory '/tmp/cabal-tmp-14617/yaya-0.4.1.0' Configuring yaya-0.4.1.0... Preprocessing library for yaya-0.4.1.0.. Building library for yaya-0.4.1.0.. [1 of 9] Compiling Yaya.Functor ( src/Yaya/Functor.hs, dist/build/Yaya/Functor.o, dist/build/Yaya/Functor.dyn_o ) [2 of 9] Compiling Yaya.Pattern ( src/Yaya/Pattern.hs, dist/build/Yaya/Pattern.o, dist/build/Yaya/Pattern.dyn_o ) [3 of 9] Compiling Yaya.Fold.Common ( src/Yaya/Fold/Common.hs, dist/build/Yaya/Fold/Common.o, dist/build/Yaya/Fold/Common.dyn_o ) [4 of 9] Compiling Yaya.Fold ( src/Yaya/Fold.hs, dist/build/Yaya/Fold.o, dist/build/Yaya/Fold.dyn_o ) [5 of 9] Compiling Yaya.Fold.Native ( src/Yaya/Fold/Native.hs, dist/build/Yaya/Fold/Native.o, dist/build/Yaya/Fold/Native.dyn_o ) [6 of 9] Compiling Yaya.Experimental.Foldable ( src/Yaya/Experimental/Foldable.hs, dist/build/Yaya/Experimental/Foldable.o, dist/build/Yaya/Experimental/Foldable.dyn_o ) [7 of 9] Compiling Yaya.Applied ( src/Yaya/Applied.hs, dist/build/Yaya/Applied.o, dist/build/Yaya/Applied.dyn_o ) [8 of 9] Compiling Yaya.Retrofit ( src/Yaya/Retrofit.hs, dist/build/Yaya/Retrofit.o, dist/build/Yaya/Retrofit.dyn_o ) src/Yaya/Retrofit.hs:181:44: error: Ambiguous occurrence plainTV It could refer to either TH.plainTV, imported from Language.Haskell.TH at src/Yaya/Retrofit.hs:38:1-32 (and originally defined in Language.Haskell.TH.Lib) or Yaya.Retrofit.plainTV, defined at src/Yaya/Retrofit.hs:65:1 | 181 | toTyVarBndr (VarT n) = pure $ plainTV n | ^^^^^^^ src/Yaya/Retrofit.hs:182:44: error: Ambiguous occurrence kindedTV It could refer to either TH.kindedTV, imported from Language.Haskell.TH at src/Yaya/Retrofit.hs:38:1-32 (and originally defined in Language.Haskell.TH.Lib) or Yaya.Retrofit.kindedTV, defined at src/Yaya/Retrofit.hs:62:1 | 182 | toTyVarBndr (SigT (VarT n) k) = pure $ kindedTV n k | ^^^^^^^^ src/Yaya/Retrofit.hs:199:26: error: Ambiguous occurrence plainTV It could refer to either TH.plainTV, imported from Language.Haskell.TH at src/Yaya/Retrofit.hs:38:1-32 (and originally defined in Language.Haskell.TH.Lib) or Yaya.Retrofit.plainTV, defined at src/Yaya/Retrofit.hs:65:1 | 199 | let varsF = vars ++ [plainTV rName] | ^^^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-14617/yaya-0.4.1.0' cabal: Error: some packages failed to install: yaya-0.4.1.0-CVTYXNtc5XsEwWfzKE7sc9 failed during the building phase. The exception was: ExitFailure 1