Warning: The install command is a part of the legacy v1 style of cabal usage. Please switch to using either the new project style and the new-install command or the legacy v1-install alias as new-style projects will become the default in the next version of cabal-install. Please file a bug if you cannot replicate a working v1- use case with the new-style commands. For more information, see: https://wiki.haskell.org/Cabal/NewBuild Resolving dependencies... Starting StateVar-1.1.1.1 Starting base-orphans-0.8 Starting cabal-doctest-1.0.6 Starting base-compat-0.10.5 Building StateVar-1.1.1.1 Building base-orphans-0.8 Building cabal-doctest-1.0.6 Building base-compat-0.10.5 Completed base-orphans-0.8 Starting call-stack-0.1.0 Completed StateVar-1.1.1.1 Starting data-default-class-0.1.2.0 Building call-stack-0.1.0 Building data-default-class-0.1.2.0 Completed cabal-doctest-1.0.6 Starting dependent-sum-0.4 Building dependent-sum-0.4 Completed call-stack-0.1.0 Starting dlist-0.8.0.5 Completed data-default-class-0.1.2.0 Starting erf-2.0.0.0 Building dlist-0.8.0.5 Building erf-2.0.0.0 Completed dependent-sum-0.4 Starting hashable-1.2.7.0 Building hashable-1.2.7.0 Completed base-compat-0.10.5 Completed erf-2.0.0.0 Starting integer-logarithms-1.0.2.2 Completed dlist-0.8.0.5 Starting newtype-0.2 Starting haskell-src-exts-1.20.3 Building integer-logarithms-1.0.2.2 Building newtype-0.2 Building haskell-src-exts-1.20.3 Completed newtype-0.2 Starting newtype-generics-0.5.3 Completed integer-logarithms-1.0.2.2 Starting old-locale-1.0.0.7 Building newtype-generics-0.5.3 Building old-locale-1.0.0.7 Completed hashable-1.2.7.0 Starting parallel-3.2.2.0 Building parallel-3.2.2.0 Completed newtype-generics-0.5.3 Starting primitive-0.6.4.0 Completed old-locale-1.0.0.7 Starting random-1.1 Building primitive-0.6.4.0 Building random-1.1 Completed parallel-3.2.2.0 Starting ref-tf-0.4.0.1 Building ref-tf-0.4.0.1 Completed random-1.1 Starting reflection-2.1.4 Building reflection-2.1.4 Completed ref-tf-0.4.0.1 Starting safe-0.3.17 Building safe-0.3.17 Completed safe-0.3.17 Starting semigroups-0.18.5 Building semigroups-0.18.5 Completed reflection-2.1.4 Starting syb-0.7 Building syb-0.7 Completed semigroups-0.18.5 Starting tagged-0.8.6 Building tagged-0.8.6 Completed primitive-0.6.4.0 Starting th-abstraction-0.2.10.0 Building th-abstraction-0.2.10.0 Completed syb-0.7 Starting time-locale-compat-0.1.1.5 Completed tagged-0.8.6 Starting transformers-compat-0.6.2 Building time-locale-compat-0.1.1.5 Building transformers-compat-0.6.2 Completed time-locale-compat-0.1.1.5 Starting unbounded-delays-0.1.1.0 Building unbounded-delays-0.1.1.0 Completed unbounded-delays-0.1.1.0 Starting void-0.7.2 Completed th-abstraction-0.2.10.0 Starting contravariant-1.5 Completed transformers-compat-0.6.2 Starting data-default-instances-containers-0.0.1 Building void-0.7.2 Building contravariant-1.5 Building data-default-instances-containers-0.0.1 Completed void-0.7.2 Starting dependent-map-0.2.4.0 Building dependent-map-0.2.4.0 Completed data-default-instances-containers-0.0.1 Starting data-default-instances-dlist-0.0.1 Building data-default-instances-dlist-0.0.1 Completed data-default-instances-dlist-0.0.1 Starting unordered-containers-0.2.10.0 Completed contravariant-1.5 Starting MemoTrie-0.6.9 Building unordered-containers-0.2.10.0 Building MemoTrie-0.6.9 Completed dependent-map-0.2.4.0 Starting data-default-instances-old-locale-0.0.1 Building data-default-instances-old-locale-0.0.1 Completed MemoTrie-0.6.9 Starting uuid-types-1.0.3 Building uuid-types-1.0.3 Completed data-default-instances-old-locale-0.0.1 Starting vector-0.12.0.2 Building vector-0.12.0.2 Completed uuid-types-1.0.3 Starting tf-random-0.5 Building tf-random-0.5 Completed unordered-containers-0.2.10.0 Starting scientific-0.3.6.2 Building scientific-0.3.6.2 Completed tf-random-0.5 Starting prim-uniq-0.1.0.1 Building prim-uniq-0.1.0.1 Completed prim-uniq-0.1.0.1 Starting th-expand-syns-0.4.4.0 Building th-expand-syns-0.4.4.0 Completed scientific-0.3.6.2 Starting distributive-0.6 Completed th-expand-syns-0.4.4.0 Starting th-lift-0.7.11 Building th-lift-0.7.11 Building distributive-0.6 Completed th-lift-0.7.11 Starting transformers-base-0.4.5.2 Completed distributive-0.6 Starting exceptions-0.10.0 Building transformers-base-0.4.5.2 Building exceptions-0.10.0 Completed transformers-base-0.4.5.2 Starting exception-transformers-0.4.0.7 Building exception-transformers-0.4.0.7 Completed exceptions-0.10.0 Starting data-default-0.7.1.1 Completed exception-transformers-0.4.0.7 Starting QuickCheck-2.12.6.1 Building data-default-0.7.1.1 Building QuickCheck-2.12.6.1 Completed data-default-0.7.1.1 Starting attoparsec-0.13.2.2 Building attoparsec-0.13.2.2 Completed vector-0.12.0.2 Starting th-reify-many-0.1.8 Building th-reify-many-0.1.8 Completed attoparsec-0.13.2.2 Starting comonad-5.0.4 Completed th-reify-many-0.1.8 Starting monad-control-1.0.2.3 Building monad-control-1.0.2.3 Building comonad-5.0.4 Completed monad-control-1.0.2.3 Starting th-lift-instances-0.1.11 Building th-lift-instances-0.1.11 Completed comonad-5.0.4 Starting aeson-1.4.2.0 Completed th-lift-instances-0.1.11 Starting bifunctors-5.5.3 Building aeson-1.4.2.0 Building bifunctors-5.5.3 Completed QuickCheck-2.12.6.1 Starting th-orphans-0.13.6 Building th-orphans-0.13.6 Completed th-orphans-0.13.6 Completed bifunctors-5.5.3 Starting profunctors-5.3 Starting semigroupoids-5.3.2 Building profunctors-5.3 Building semigroupoids-5.3.2 Completed profunctors-5.3 Starting invariant-0.5.1 Building invariant-0.5.1 Completed semigroupoids-5.3.2 Starting free-5.1 Building free-5.1 Completed invariant-0.5.1 Completed aeson-1.4.2.0 Completed haskell-src-exts-1.20.3 Starting haskell-src-meta-0.8.0.3 Building haskell-src-meta-0.8.0.3 Completed haskell-src-meta-0.8.0.3 Completed free-5.1 Starting keys-3.12.1 Starting adjunctions-4.4 Building keys-3.12.1 Building adjunctions-4.4 Completed adjunctions-4.4 Starting kan-extensions-5.2 Completed keys-3.12.1 Building kan-extensions-5.2 Completed kan-extensions-5.2 Starting pointed-5.0.1 Starting lens-4.17 Building pointed-5.0.1 Building lens-4.17 Completed pointed-5.0.1 Starting vector-instances-3.4 Building vector-instances-3.4 Completed vector-instances-3.4 Completed lens-4.17 Starting these-0.7.6 Starting monoidal-containers-0.4.0.0 Building these-0.7.6 Building monoidal-containers-0.4.0.0 Completed monoidal-containers-0.4.0.0 Completed these-0.7.6 Starting reflex-0.5 Building reflex-0.5 Failed to install reflex-0.5 Build log ( /home/builder/.cabal/logs/ghc-8.6.3/reflex-0.5-4HThpZhDfrF6Q71f1ugMYr.log ): cabal: Entering directory '/tmp/cabal-tmp-6130/reflex-0.5' Configuring reflex-0.5... Preprocessing library for reflex-0.5.. Building library for reflex-0.5.. [ 1 of 50] Compiling Data.FastWeakBag ( src/Data/FastWeakBag.hs, dist/build/Data/FastWeakBag.o ) [ 2 of 50] Compiling Data.Functor.Misc ( src/Data/Functor/Misc.hs, dist/build/Data/Functor/Misc.o ) [ 3 of 50] Compiling Data.Map.Misc ( src/Data/Map/Misc.hs, dist/build/Data/Map/Misc.o ) [ 4 of 50] Compiling Data.WeakBag ( src/Data/WeakBag.hs, dist/build/Data/WeakBag.o ) [ 5 of 50] Compiling Reflex.FastWeak ( src/Reflex/FastWeak.hs, dist/build/Reflex/FastWeak.o ) [ 6 of 50] Compiling Reflex.FunctorMaybe ( src/Reflex/FunctorMaybe.hs, dist/build/Reflex/FunctorMaybe.o ) [ 7 of 50] Compiling Reflex.Patch.Class ( src/Reflex/Patch/Class.hs, dist/build/Reflex/Patch/Class.o ) src/Reflex/Patch/Class.hs:7:1: warning: [-Wunused-imports] The import of ‘Data.Semigroup’ is redundant except perhaps to import instances from ‘Data.Semigroup’ To import instances alone, use: import Data.Semigroup() | 7 | import Data.Semigroup | ^^^^^^^^^^^^^^^^^^^^^ [ 8 of 50] Compiling Reflex.Patch.IntMap ( src/Reflex/Patch/IntMap.hs, dist/build/Reflex/Patch/IntMap.o ) [ 9 of 50] Compiling Data.FastMutableIntMap ( src/Data/FastMutableIntMap.hs, dist/build/Data/FastMutableIntMap.o ) [10 of 50] Compiling Reflex.Patch.Map ( src/Reflex/Patch/Map.hs, dist/build/Reflex/Patch/Map.o ) [11 of 50] Compiling Reflex.Patch.DMap ( src/Reflex/Patch/DMap.hs, dist/build/Reflex/Patch/DMap.o ) [12 of 50] Compiling Reflex.Patch.MapWithMove ( src/Reflex/Patch/MapWithMove.hs, dist/build/Reflex/Patch/MapWithMove.o ) src/Reflex/Patch/MapWithMove.hs:173:51: error: Ambiguous occurrence ‘swap’ It could refer to either ‘Data.These.swap’, imported from ‘Data.These’ at src/Reflex/Patch/MapWithMove.hs:25:1-17 or ‘Data.Tuple.swap’, imported from ‘Data.Tuple’ at src/Reflex/Patch/MapWithMove.hs:26:1-17 | 173 | where oldByValue = Map.fromListWith Set.union $ swap . first Set.singleton <$> Map.toList oldByIndex | ^^^^ cabal: Leaving directory '/tmp/cabal-tmp-6130/reflex-0.5' cabal: Error: some packages failed to install: reflex-0.5-4HThpZhDfrF6Q71f1ugMYr failed during the building phase. The exception was: ExitFailure 1