Resolving dependencies... Configuring random-1.1... Building random-1.1... Preprocessing library random-1.1... [1 of 1] Compiling System.Random ( System/Random.hs, dist/build/System/Random.o ) In-place registering random-1.1... Running Haddock for random-1.1... Running hscolour for random-1.1... Preprocessing library random-1.1... Preprocessing library random-1.1... Haddock coverage: Cannot find documentation for: $intro 100% ( 16 / 16) in 'System.Random' Documentation created: dist/doc/html/random/index.html, dist/doc/html/random/random.txt Creating package registration file: /tmp/pkgConf-random-122563.1 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.8.3/random-1.1 Registering random-1.1... Installed random-1.1 Configuring transformers-0.4.3.0... Building transformers-0.4.3.0... Preprocessing library transformers-0.4.3.0... [ 1 of 28] Compiling Data.Functor.Identity ( oldsrc/Data/Functor/Identity.hs, dist/build/Data/Functor/Identity.o ) [ 2 of 28] Compiling Control.Monad.Trans.Class ( Control/Monad/Trans/Class.hs, dist/build/Control/Monad/Trans/Class.o ) [ 3 of 28] Compiling Control.Monad.Signatures ( Control/Monad/Signatures.hs, dist/build/Control/Monad/Signatures.o ) [ 4 of 28] Compiling Control.Monad.IO.Class ( Control/Monad/IO/Class.hs, dist/build/Control/Monad/IO/Class.o ) [ 5 of 28] Compiling Control.Monad.Trans.Cont ( Control/Monad/Trans/Cont.hs, dist/build/Control/Monad/Trans/Cont.o ) [ 6 of 28] Compiling Control.Monad.Trans.Reader ( Control/Monad/Trans/Reader.hs, dist/build/Control/Monad/Trans/Reader.o ) [ 7 of 28] Compiling Control.Monad.Trans.RWS.Lazy ( Control/Monad/Trans/RWS/Lazy.hs, dist/build/Control/Monad/Trans/RWS/Lazy.o ) [ 8 of 28] Compiling Control.Monad.Trans.RWS ( Control/Monad/Trans/RWS.hs, dist/build/Control/Monad/Trans/RWS.o ) [ 9 of 28] Compiling Control.Monad.Trans.RWS.Strict ( Control/Monad/Trans/RWS/Strict.hs, dist/build/Control/Monad/Trans/RWS/Strict.o ) [10 of 28] Compiling Control.Monad.Trans.State.Lazy ( Control/Monad/Trans/State/Lazy.hs, dist/build/Control/Monad/Trans/State/Lazy.o ) [11 of 28] Compiling Control.Monad.Trans.State ( Control/Monad/Trans/State.hs, dist/build/Control/Monad/Trans/State.o ) [12 of 28] Compiling Control.Monad.Trans.State.Strict ( Control/Monad/Trans/State/Strict.hs, dist/build/Control/Monad/Trans/State/Strict.o ) [13 of 28] Compiling Data.Functor.Classes ( Data/Functor/Classes.hs, dist/build/Data/Functor/Classes.o ) [14 of 28] Compiling Data.Functor.Constant ( Data/Functor/Constant.hs, dist/build/Data/Functor/Constant.o ) [15 of 28] Compiling Control.Applicative.Lift ( Control/Applicative/Lift.hs, dist/build/Control/Applicative/Lift.o ) [16 of 28] Compiling Control.Monad.Trans.Except ( Control/Monad/Trans/Except.hs, dist/build/Control/Monad/Trans/Except.o ) [17 of 28] Compiling Control.Monad.Trans.Error ( Control/Monad/Trans/Error.hs, dist/build/Control/Monad/Trans/Error.o ) [18 of 28] Compiling Control.Monad.Trans.Identity ( Control/Monad/Trans/Identity.hs, dist/build/Control/Monad/Trans/Identity.o ) [19 of 28] Compiling Control.Monad.Trans.List ( Control/Monad/Trans/List.hs, dist/build/Control/Monad/Trans/List.o ) [20 of 28] Compiling Control.Monad.Trans.Maybe ( Control/Monad/Trans/Maybe.hs, dist/build/Control/Monad/Trans/Maybe.o ) [21 of 28] Compiling Control.Monad.Trans.Writer.Lazy ( Control/Monad/Trans/Writer/Lazy.hs, dist/build/Control/Monad/Trans/Writer/Lazy.o ) [22 of 28] Compiling Control.Monad.Trans.Writer ( Control/Monad/Trans/Writer.hs, dist/build/Control/Monad/Trans/Writer.o ) [23 of 28] Compiling Control.Monad.Trans.Writer.Strict ( Control/Monad/Trans/Writer/Strict.hs, dist/build/Control/Monad/Trans/Writer/Strict.o ) [24 of 28] Compiling Data.Functor.Compose ( Data/Functor/Compose.hs, dist/build/Data/Functor/Compose.o ) [25 of 28] Compiling Data.Functor.Product ( Data/Functor/Product.hs, dist/build/Data/Functor/Product.o ) [26 of 28] Compiling Data.Functor.Sum ( Data/Functor/Sum.hs, dist/build/Data/Functor/Sum.o ) [27 of 28] Compiling Control.Applicative.Backwards ( Control/Applicative/Backwards.hs, dist/build/Control/Applicative/Backwards.o ) [28 of 28] Compiling Data.Functor.Reverse ( Data/Functor/Reverse.hs, dist/build/Data/Functor/Reverse.o ) In-place registering transformers-0.4.3.0... Running Haddock for transformers-0.4.3.0... Running hscolour for transformers-0.4.3.0... Preprocessing library transformers-0.4.3.0... Preprocessing library transformers-0.4.3.0... Haddock coverage: 100% ( 2 / 2) in 'Data.Functor.Identity' 100% ( 14 / 14) in 'Control.Monad.Trans.Class' 100% ( 5 / 5) in 'Control.Monad.Signatures' 100% ( 2 / 2) in 'Control.Monad.IO.Class' 100% ( 22 / 22) in 'Control.Monad.Trans.Cont' 100% ( 18 / 18) in 'Control.Monad.Trans.Reader' 100% ( 37 / 37) in 'Control.Monad.Trans.RWS.Lazy' 100% ( 2 / 2) in 'Control.Monad.Trans.RWS' 100% ( 37 / 37) in 'Control.Monad.Trans.RWS.Strict' 100% ( 34 / 34) in 'Control.Monad.Trans.State.Lazy' 100% ( 2 / 2) in 'Control.Monad.Trans.State' 100% ( 34 / 34) in 'Control.Monad.Trans.State.Strict' 100% ( 15 / 15) in 'Data.Functor.Classes' 100% ( 2 / 2) in 'Data.Functor.Constant' 100% ( 9 / 9) in 'Control.Applicative.Lift' 100% ( 19 / 19) in 'Control.Monad.Trans.Except' 100% ( 15 / 15) in 'Control.Monad.Trans.Error' 100% ( 7 / 7) in 'Control.Monad.Trans.Identity' 100% ( 7 / 7) in 'Control.Monad.Trans.List' 100% ( 12 / 12) in 'Control.Monad.Trans.Maybe' 100% ( 20 / 20) in 'Control.Monad.Trans.Writer.Lazy' 100% ( 2 / 2) in 'Control.Monad.Trans.Writer' 100% ( 20 / 20) in 'Control.Monad.Trans.Writer.Strict' 100% ( 2 / 2) in 'Data.Functor.Compose' 100% ( 2 / 2) in 'Data.Functor.Product' 100% ( 2 / 2) in 'Data.Functor.Sum' 100% ( 2 / 2) in 'Control.Applicative.Backwards' 100% ( 2 / 2) in 'Data.Functor.Reverse' Documentation created: dist/doc/html/transformers/index.html, dist/doc/html/transformers/transformers.txt Creating package registration file: /tmp/pkgConf-transformers-0.4.322563.0 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.8.3/transformers-0.4.3.0 Registering transformers-0.4.3.0... Installed transformers-0.4.3.0 Configuring mtl-2.2.1... Building mtl-2.2.1... Preprocessing library mtl-2.2.1... [ 1 of 22] Compiling Control.Monad.Writer.Class ( Control/Monad/Writer/Class.hs, dist/build/Control/Monad/Writer/Class.o ) [ 2 of 22] Compiling Control.Monad.State.Class ( Control/Monad/State/Class.hs, dist/build/Control/Monad/State/Class.o ) [ 3 of 22] Compiling Control.Monad.Reader.Class ( Control/Monad/Reader/Class.hs, dist/build/Control/Monad/Reader/Class.o ) [ 4 of 22] Compiling Control.Monad.RWS.Class ( Control/Monad/RWS/Class.hs, dist/build/Control/Monad/RWS/Class.o ) [ 5 of 22] Compiling Control.Monad.Identity ( Control/Monad/Identity.hs, dist/build/Control/Monad/Identity.o ) [ 6 of 22] Compiling Control.Monad.Error.Class ( Control/Monad/Error/Class.hs, dist/build/Control/Monad/Error/Class.o ) [ 7 of 22] Compiling Control.Monad.Cont.Class ( Control/Monad/Cont/Class.hs, dist/build/Control/Monad/Cont/Class.o ) [ 8 of 22] Compiling Control.Monad.Trans ( Control/Monad/Trans.hs, dist/build/Control/Monad/Trans.o ) [ 9 of 22] Compiling Control.Monad.Error ( Control/Monad/Error.hs, dist/build/Control/Monad/Error.o ) [10 of 22] Compiling Control.Monad.Except ( Control/Monad/Except.hs, dist/build/Control/Monad/Except.o ) [11 of 22] Compiling Control.Monad.List ( Control/Monad/List.hs, dist/build/Control/Monad/List.o ) [12 of 22] Compiling Control.Monad.RWS.Lazy ( Control/Monad/RWS/Lazy.hs, dist/build/Control/Monad/RWS/Lazy.o ) [13 of 22] Compiling Control.Monad.RWS ( Control/Monad/RWS.hs, dist/build/Control/Monad/RWS.o ) [14 of 22] Compiling Control.Monad.Reader ( Control/Monad/Reader.hs, dist/build/Control/Monad/Reader.o ) [15 of 22] Compiling Control.Monad.RWS.Strict ( Control/Monad/RWS/Strict.hs, dist/build/Control/Monad/RWS/Strict.o ) [16 of 22] Compiling Control.Monad.State.Lazy ( Control/Monad/State/Lazy.hs, dist/build/Control/Monad/State/Lazy.o ) [17 of 22] Compiling Control.Monad.State ( Control/Monad/State.hs, dist/build/Control/Monad/State.o ) [18 of 22] Compiling Control.Monad.State.Strict ( Control/Monad/State/Strict.hs, dist/build/Control/Monad/State/Strict.o ) [19 of 22] Compiling Control.Monad.Writer.Lazy ( Control/Monad/Writer/Lazy.hs, dist/build/Control/Monad/Writer/Lazy.o ) [20 of 22] Compiling Control.Monad.Writer ( Control/Monad/Writer.hs, dist/build/Control/Monad/Writer.o ) [21 of 22] Compiling Control.Monad.Writer.Strict ( Control/Monad/Writer/Strict.hs, dist/build/Control/Monad/Writer/Strict.o ) [22 of 22] Compiling Control.Monad.Cont ( Control/Monad/Cont.hs, dist/build/Control/Monad/Cont.o ) In-place registering mtl-2.2.1... Running Haddock for mtl-2.2.1... Running hscolour for mtl-2.2.1... Preprocessing library mtl-2.2.1... Preprocessing library mtl-2.2.1... Haddock coverage: 75% ( 3 / 4) in 'Control.Monad.Writer.Class' 100% ( 5 / 5) in 'Control.Monad.State.Class' 100% ( 3 / 3) in 'Control.Monad.Reader.Class' 80% ( 4 / 5) in 'Control.Monad.RWS.Class' 100% ( 4 / 4) in 'Control.Monad.Identity' 100% ( 3 / 3) in 'Control.Monad.Error.Class' 50% ( 1 / 2) in 'Control.Monad.Cont.Class' 100% ( 3 / 3) in 'Control.Monad.Trans' 93% ( 14 / 15) in 'Control.Monad.Error' 100% ( 19 / 19) in 'Control.Monad.Except' 100% ( 5 / 5) in 'Control.Monad.List' 95% ( 21 / 22) in 'Control.Monad.RWS.Lazy' 100% ( 2 / 2) in 'Control.Monad.RWS' 96% ( 22 / 23) in 'Control.Monad.Reader' 95% ( 21 / 22) in 'Control.Monad.RWS.Strict' 96% ( 24 / 25) in 'Control.Monad.State.Lazy' 100% ( 2 / 2) in 'Control.Monad.State' 96% ( 24 / 25) in 'Control.Monad.State.Strict' 89% ( 17 / 19) in 'Control.Monad.Writer.Lazy' 100% ( 2 / 2) in 'Control.Monad.Writer' 94% ( 17 / 18) in 'Control.Monad.Writer.Strict' 91% ( 20 / 22) in 'Control.Monad.Cont' Documentation created: dist/doc/html/mtl/index.html, dist/doc/html/mtl/mtl.txt Creating package registration file: /tmp/pkgConf-mtl-2.222563.1 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.8.3/mtl-2.2.1 Registering mtl-2.2.1... Installed mtl-2.2.1 Configuring primitive-0.6... Building primitive-0.6... Preprocessing library primitive-0.6... [ 1 of 10] Compiling Data.Primitive.Internal.Compat ( Data/Primitive/Internal/Compat.hs, dist/build/Data/Primitive/Internal/Compat.o ) [ 2 of 10] Compiling Data.Primitive.MachDeps ( Data/Primitive/MachDeps.hs, dist/build/Data/Primitive/MachDeps.o ) [ 3 of 10] Compiling Data.Primitive.Internal.Operations ( Data/Primitive/Internal/Operations.hs, dist/build/Data/Primitive/Internal/Operations.o ) [ 4 of 10] Compiling Control.Monad.Primitive ( Control/Monad/Primitive.hs, dist/build/Control/Monad/Primitive.o ) Control/Monad/Primitive.hs:39:1: Warning: Module ‘Control.Monad.Trans.Error’ is deprecated: Use Control.Monad.Trans.Except instead Control/Monad/Primitive.hs:98:11: Warning: In the use of type constructor or class ‘Error’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" Control/Monad/Primitive.hs:98:47: Warning: In the use of type constructor or class ‘ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" Control/Monad/Primitive.hs:99:19: Warning: In the use of type constructor or class ‘ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" [ 5 of 10] Compiling Data.Primitive.Types ( Data/Primitive/Types.hs, dist/build/Data/Primitive/Types.o ) [ 6 of 10] Compiling Data.Primitive.Array ( Data/Primitive/Array.hs, dist/build/Data/Primitive/Array.o ) [ 7 of 10] Compiling Data.Primitive.ByteArray ( Data/Primitive/ByteArray.hs, dist/build/Data/Primitive/ByteArray.o ) [ 8 of 10] Compiling Data.Primitive.Addr ( Data/Primitive/Addr.hs, dist/build/Data/Primitive/Addr.o ) [ 9 of 10] Compiling Data.Primitive ( Data/Primitive.hs, dist/build/Data/Primitive.o ) [10 of 10] Compiling Data.Primitive.MutVar ( Data/Primitive/MutVar.hs, dist/build/Data/Primitive/MutVar.o ) In-place registering primitive-0.6... Running Haddock for primitive-0.6... Running hscolour for primitive-0.6... Preprocessing library primitive-0.6... Preprocessing library primitive-0.6... Control/Monad/Primitive.hs:39:1: Warning: Module ‘Control.Monad.Trans.Error’ is deprecated: Use Control.Monad.Trans.Except instead Control/Monad/Primitive.hs:98:11: Warning: In the use of type constructor or class ‘Error’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" Control/Monad/Primitive.hs:98:47: Warning: In the use of type constructor or class ‘ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" Control/Monad/Primitive.hs:99:19: Warning: In the use of type constructor or class ‘ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" Haddock coverage: 100% ( 3 / 3) in 'Data.Primitive.Internal.Compat' 3% ( 1 / 35) in 'Data.Primitive.MachDeps' 3% ( 1 / 29) in 'Data.Primitive.Internal.Operations' 75% ( 12 / 16) in 'Control.Monad.Primitive' 100% ( 3 / 3) in 'Data.Primitive.Types' 100% ( 15 / 15) in 'Data.Primitive.Array' 93% ( 27 / 29) in 'Data.Primitive.ByteArray' 100% ( 16 / 16) in 'Data.Primitive.Addr' 100% ( 7 / 7) in 'Data.Primitive' 100% ( 9 / 9) in 'Data.Primitive.MutVar' Documentation created: dist/doc/html/primitive/index.html, dist/doc/html/primitive/primitive.txt Creating package registration file: /tmp/pkgConf-primitive-022563.6 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.8.3/primitive-0.6 Registering primitive-0.6... Installed primitive-0.6 Configuring tf-random-0.5... Building tf-random-0.5... Preprocessing library tf-random-0.5... [1 of 4] Compiling System.Random.TF.Gen ( src/System/Random/TF/Gen.hs, dist/build/System/Random/TF/Gen.o ) [2 of 4] Compiling System.Random.TF.Init ( src/System/Random/TF/Init.hs, dist/build/System/Random/TF/Init.o ) src/System/Random/TF/Init.hs:94:5: Warning: In the use of ‘bitSize’ (imported from Data.Bits): Deprecated: "Use 'bitSizeMaybe' or 'finiteBitSize' instead" [3 of 4] Compiling System.Random.TF.Instances ( src/System/Random/TF/Instances.hs, dist/build/System/Random/TF/Instances.o ) [4 of 4] Compiling System.Random.TF ( src/System/Random/TF.hs, dist/build/System/Random/TF.o ) In-place registering tf-random-0.5... Running Haddock for tf-random-0.5... Running hscolour for tf-random-0.5... Preprocessing library tf-random-0.5... Preprocessing library tf-random-0.5... src/System/Random/TF/Init.hs:94:5: Warning: In the use of ‘bitSize’ (imported from Data.Bits): Deprecated: "Use 'bitSizeMaybe' or 'finiteBitSize' instead" Haddock coverage: 100% ( 4 / 4) in 'System.Random.TF.Gen' 83% ( 5 / 6) in 'System.Random.TF.Init' 33% ( 1 / 3) in 'System.Random.TF.Instances' 100% ( 3 / 3) in 'System.Random.TF' Documentation created: dist/doc/html/tf-random/index.html, dist/doc/html/tf-random/tf-random.txt Creating package registration file: /tmp/pkgConf-tf-random-022563.5 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.8.3/tf-random-0.5 Registering tf-random-0.5... Installed tf-random-0.5 Configuring QuickCheck-2.8.1... Building QuickCheck-2.8.1... Preprocessing library QuickCheck-2.8.1... [ 1 of 15] Compiling Test.QuickCheck.Random ( Test/QuickCheck/Random.hs, dist/build/Test/QuickCheck/Random.o ) [ 2 of 15] Compiling Test.QuickCheck.Exception ( Test/QuickCheck/Exception.hs, dist/build/Test/QuickCheck/Exception.o ) [ 3 of 15] Compiling Test.QuickCheck.Text ( Test/QuickCheck/Text.hs, dist/build/Test/QuickCheck/Text.o ) [ 4 of 15] Compiling Test.QuickCheck.State ( Test/QuickCheck/State.hs, dist/build/Test/QuickCheck/State.o ) [ 5 of 15] Compiling Test.QuickCheck.Gen ( Test/QuickCheck/Gen.hs, dist/build/Test/QuickCheck/Gen.o ) [ 6 of 15] Compiling Test.QuickCheck.Gen.Unsafe ( Test/QuickCheck/Gen/Unsafe.hs, dist/build/Test/QuickCheck/Gen/Unsafe.o ) [ 7 of 15] Compiling Test.QuickCheck.Arbitrary ( Test/QuickCheck/Arbitrary.hs, dist/build/Test/QuickCheck/Arbitrary.o ) [ 8 of 15] Compiling Test.QuickCheck.Modifiers ( Test/QuickCheck/Modifiers.hs, dist/build/Test/QuickCheck/Modifiers.o ) [ 9 of 15] Compiling Test.QuickCheck.Poly ( Test/QuickCheck/Poly.hs, dist/build/Test/QuickCheck/Poly.o ) [10 of 15] Compiling Test.QuickCheck.Function ( Test/QuickCheck/Function.hs, dist/build/Test/QuickCheck/Function.o ) [11 of 15] Compiling Test.QuickCheck.Property ( Test/QuickCheck/Property.hs, dist/build/Test/QuickCheck/Property.o ) [12 of 15] Compiling Test.QuickCheck.Test ( Test/QuickCheck/Test.hs, dist/build/Test/QuickCheck/Test.o ) [13 of 15] Compiling Test.QuickCheck.All ( Test/QuickCheck/All.hs, dist/build/Test/QuickCheck/All.o ) [14 of 15] Compiling Test.QuickCheck.Monadic ( Test/QuickCheck/Monadic.hs, dist/build/Test/QuickCheck/Monadic.o ) [15 of 15] Compiling Test.QuickCheck ( Test/QuickCheck.hs, dist/build/Test/QuickCheck.o ) In-place registering QuickCheck-2.8.1... Running Haddock for QuickCheck-2.8.1... Running hscolour for QuickCheck-2.8.1... Preprocessing library QuickCheck-2.8.1... Preprocessing library QuickCheck-2.8.1... Haddock coverage: 10% ( 2 / 20) in 'Test.QuickCheck.Random' 33% ( 3 / 9) in 'Test.QuickCheck.Exception' 6% ( 1 / 18) in 'Test.QuickCheck.Text' 100% ( 2 / 2) in 'Test.QuickCheck.State' 89% ( 25 / 28) in 'Test.QuickCheck.Gen' 80% ( 4 / 5) in 'Test.QuickCheck.Gen.Unsafe' 100% ( 32 / 32) in 'Test.QuickCheck.Arbitrary' 93% ( 14 / 15) in 'Test.QuickCheck.Modifiers' 14% ( 1 / 7) in 'Test.QuickCheck.Poly' 38% ( 3 / 8) in 'Test.QuickCheck.Function' 62% ( 44 / 71) in 'Test.QuickCheck.Property' 50% ( 14 / 28) in 'Test.QuickCheck.Test' 100% ( 9 / 9) in 'Test.QuickCheck.All' 78% ( 14 / 18) in 'Test.QuickCheck.Monadic' 99% (127 /128) in 'Test.QuickCheck' Warning: Test.QuickCheck.Arbitrary: could not find link destinations for: Test.QuickCheck.Arbitrary.RecursivelyShrink Test.QuickCheck.Arbitrary.GSubterms Test.QuickCheck.Arbitrary.GCoArbitrary Test.QuickCheck.Arbitrary.gSubterms Test.QuickCheck.Arbitrary.gSubtermsIncl Warning: Test.QuickCheck: could not find link destinations for: Test.QuickCheck.Arbitrary.GCoArbitrary Test.QuickCheck.Arbitrary.RecursivelyShrink Test.QuickCheck.Arbitrary.GSubterms Documentation created: dist/doc/html/QuickCheck/index.html, dist/doc/html/QuickCheck/QuickCheck.txt Creating package registration file: /tmp/pkgConf-QuickCheck-2.822563.1 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.8.3/QuickCheck-2.8.1 Registering QuickCheck-2.8.1... Installed QuickCheck-2.8.1 Downloading QuickCheck-GenT-0.1.2... Configuring QuickCheck-GenT-0.1.2... Building QuickCheck-GenT-0.1.2... Preprocessing library QuickCheck-GenT-0.1.2... [1 of 2] Compiling QuickCheck.GenT.Prelude ( src/QuickCheck/GenT/Prelude.hs, dist/build/QuickCheck/GenT/Prelude.o ) src/QuickCheck/GenT/Prelude.hs:4:5: Ambiguous occurrence ‘traceM’ It could refer to either ‘QuickCheck.GenT.Prelude.traceM’, defined at src/QuickCheck/GenT/Prelude.hs:55:1 or ‘Exports.traceM’, imported from ‘Debug.Trace’ at src/QuickCheck/GenT/Prelude.hs:41:1-29 src/QuickCheck/GenT/Prelude.hs:4:5: Conflicting exports for ‘traceM’: ‘module Exports’ exports ‘Exports.traceM’ imported from ‘Debug.Trace’ at src/QuickCheck/GenT/Prelude.hs:41:1-29 ‘traceM’ exports ‘QuickCheck.GenT.Prelude.traceM’ defined at src/QuickCheck/GenT/Prelude.hs:55:1 Failed to install QuickCheck-GenT-0.1.2 cabal: Error: some packages failed to install: QuickCheck-GenT-0.1.2 failed during the building phase. The exception was: ExitFailure 1