Resolving dependencies... 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' Missing documentation for: MonadWriter (Control/Monad/Writer/Class.hs:62) 100% ( 5 / 5) in 'Control.Monad.State.Class' 100% ( 3 / 3) in 'Control.Monad.Reader.Class' 80% ( 4 / 5) in 'Control.Monad.RWS.Class' Missing documentation for: MonadRWS (Control/Monad/RWS/Class.hs:44) 100% ( 4 / 4) in 'Control.Monad.Identity' 100% ( 3 / 3) in 'Control.Monad.Error.Class' 50% ( 1 / 2) in 'Control.Monad.Cont.Class' Missing documentation for: MonadCont (Control/Monad/Cont/Class.hs:73) 100% ( 3 / 3) in 'Control.Monad.Trans' 93% ( 14 / 15) in 'Control.Monad.Error' Missing documentation for: runErrorT 100% ( 19 / 19) in 'Control.Monad.Except' 100% ( 5 / 5) in 'Control.Monad.List' 95% ( 21 / 22) in 'Control.Monad.RWS.Lazy' Missing documentation for: runRWST 100% ( 2 / 2) in 'Control.Monad.RWS' 96% ( 22 / 23) in 'Control.Monad.Reader' Missing documentation for: runReaderT 95% ( 21 / 22) in 'Control.Monad.RWS.Strict' Missing documentation for: runRWST 96% ( 24 / 25) in 'Control.Monad.State.Lazy' Missing documentation for: runStateT 100% ( 2 / 2) in 'Control.Monad.State' 96% ( 24 / 25) in 'Control.Monad.State.Strict' Missing documentation for: runStateT 89% ( 17 / 19) in 'Control.Monad.Writer.Lazy' Missing documentation for: MonadWriter (Control/Monad/Writer/Class.hs:62) runWriterT 100% ( 2 / 2) in 'Control.Monad.Writer' 94% ( 17 / 18) in 'Control.Monad.Writer.Strict' Missing documentation for: MonadWriter (Control/Monad/Writer/Class.hs:62) 91% ( 20 / 22) in 'Control.Monad.Cont' Missing documentation for: MonadCont (Control/Monad/Cont/Class.hs:73) runContT Documentation created: dist/doc/html/mtl/index.html, dist/doc/html/mtl/mtl.txt Creating package registration file: /tmp/pkgConf-mtl-2.2278722862233665123.1 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.3/mtl-2.2.1-Aue4leSeVkpKLsfHIV51E8 Registering mtl-2.2.1... Installed mtl-2.2.1 Configuring stm-2.4.4.1... Building stm-2.4.4.1... Preprocessing library stm-2.4.4.1... [ 1 of 10] Compiling Control.Sequential.STM ( Control/Sequential/STM.hs, dist/build/Control/Sequential/STM.o ) [ 2 of 10] Compiling Control.Concurrent.STM.TBQueue ( Control/Concurrent/STM/TBQueue.hs, dist/build/Control/Concurrent/STM/TBQueue.o ) [ 3 of 10] Compiling Control.Concurrent.STM.TQueue ( Control/Concurrent/STM/TQueue.hs, dist/build/Control/Concurrent/STM/TQueue.o ) [ 4 of 10] Compiling Control.Concurrent.STM.TChan ( Control/Concurrent/STM/TChan.hs, dist/build/Control/Concurrent/STM/TChan.o ) [ 5 of 10] Compiling Control.Concurrent.STM.TMVar ( Control/Concurrent/STM/TMVar.hs, dist/build/Control/Concurrent/STM/TMVar.o ) [ 6 of 10] Compiling Control.Concurrent.STM.TVar ( Control/Concurrent/STM/TVar.hs, dist/build/Control/Concurrent/STM/TVar.o ) [ 7 of 10] Compiling Control.Concurrent.STM.TArray ( Control/Concurrent/STM/TArray.hs, dist/build/Control/Concurrent/STM/TArray.o ) [ 8 of 10] Compiling Control.Monad.STM ( Control/Monad/STM.hs, dist/build/Control/Monad/STM.o ) [ 9 of 10] Compiling Control.Concurrent.STM ( Control/Concurrent/STM.hs, dist/build/Control/Concurrent/STM.o ) [10 of 10] Compiling Control.Concurrent.STM.TSem ( Control/Concurrent/STM/TSem.hs, dist/build/Control/Concurrent/STM/TSem.o ) In-place registering stm-2.4.4.1... Running Haddock for stm-2.4.4.1... Running hscolour for stm-2.4.4.1... Preprocessing library stm-2.4.4.1... Preprocessing library stm-2.4.4.1... Haddock coverage: 0% ( 0 / 11) in 'Control.Sequential.STM' Missing documentation for: Module header STM (Control/Sequential/STM.hs:29) atomically (Control/Sequential/STM.hs:47) throwSTM (Control/Sequential/STM.hs:54) catchSTM (Control/Sequential/STM.hs:57) TVar (Control/Sequential/STM.hs:72) newTVar (Control/Sequential/STM.hs:75) newTVarIO (Control/Sequential/STM.hs:78) readTVar (Control/Sequential/STM.hs:83) readTVarIO (Control/Sequential/STM.hs:86) writeTVar (Control/Sequential/STM.hs:89) 100% ( 13 / 13) in 'Control.Concurrent.STM.TBQueue' 100% ( 12 / 12) in 'Control.Concurrent.STM.TQueue' 100% ( 18 / 18) in 'Control.Concurrent.STM.TChan' 100% ( 16 / 16) in 'Control.Concurrent.STM.TMVar' 100% ( 13 / 13) in 'Control.Concurrent.STM.TVar' 100% ( 2 / 2) in 'Control.Concurrent.STM.TArray' 90% ( 9 / 10) in 'Control.Monad.STM' Missing documentation for: check (Control/Monad/STM.hs:81) 100% ( 8 / 8) in 'Control.Concurrent.STM' 40% ( 2 / 5) in 'Control.Concurrent.STM.TSem' Missing documentation for: newTSem (Control/Concurrent/STM/TSem.hs:42) waitTSem (Control/Concurrent/STM/TSem.hs:45) signalTSem (Control/Concurrent/STM/TSem.hs:51) Documentation created: dist/doc/html/stm/index.html, dist/doc/html/stm/stm.txt Creating package registration file: /tmp/pkgConf-stm-2.4.4711645630195740084.1 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.3/stm-2.4.4.1-EyxFXFfnfY05IrjGaqCxeD Registering stm-2.4.4.1... Installed stm-2.4.4.1 Configuring transformers-compat-0.5.1.4... Building transformers-compat-0.5.1.4... Preprocessing library transformers-compat-0.5.1.4... [1 of 2] Compiling Paths_transformers_compat ( dist/build/autogen/Paths_transformers_compat.hs, dist/build/Paths_transformers_compat.o ) [2 of 2] Compiling Control.Monad.Trans.Instances ( src/Control/Monad/Trans/Instances.hs, dist/build/Control/Monad/Trans/Instances.o ) In-place registering transformers-compat-0.5.1.4... Running Haddock for transformers-compat-0.5.1.4... Running hscolour for transformers-compat-0.5.1.4... Preprocessing library transformers-compat-0.5.1.4... Preprocessing library transformers-compat-0.5.1.4... Haddock coverage: 0% ( 0 / 8) in 'Paths_transformers_compat' Missing documentation for: Module header version (dist/build/autogen/Paths_transformers_compat.hs:15) getBinDir (dist/build/autogen/Paths_transformers_compat.hs:25) getLibDir (dist/build/autogen/Paths_transformers_compat.hs:25) getDataDir (dist/build/autogen/Paths_transformers_compat.hs:25) getLibexecDir (dist/build/autogen/Paths_transformers_compat.hs:25) getDataFileName (dist/build/autogen/Paths_transformers_compat.hs:32) getSysconfDir (dist/build/autogen/Paths_transformers_compat.hs:25) 100% ( 1 / 1) in 'Control.Monad.Trans.Instances' Documentation created: dist/doc/html/transformers-compat/index.html, dist/doc/html/transformers-compat/transformers-compat.txt Creating package registration file: /tmp/pkgConf-transformers-compat-0.5.11900553541400000569.4 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.3/transformers-compat-0.5.1.4-EfAx8JliEAN1Gu6x0L8GYr Registering transformers-compat-0.5.1.4... Installed transformers-compat-0.5.1.4 Configuring exceptions-0.8.2.1... Building exceptions-0.8.2.1... Preprocessing library exceptions-0.8.2.1... [1 of 2] Compiling Control.Monad.Catch ( src/Control/Monad/Catch.hs, dist/build/Control/Monad/Catch.o ) [2 of 2] Compiling Control.Monad.Catch.Pure ( src/Control/Monad/Catch/Pure.hs, dist/build/Control/Monad/Catch/Pure.o ) In-place registering exceptions-0.8.2.1... Running Haddock for exceptions-0.8.2.1... Running hscolour for exceptions-0.8.2.1... Preprocessing library exceptions-0.8.2.1... Preprocessing library exceptions-0.8.2.1... Haddock coverage: 100% ( 31 / 31) in 'Control.Monad.Catch' 80% ( 8 / 10) in 'Control.Monad.Catch.Pure' Missing documentation for: Catch (src/Control/Monad/Catch/Pure.hs:95) runCatch (src/Control/Monad/Catch/Pure.hs:97) Documentation created: dist/doc/html/exceptions/index.html, dist/doc/html/exceptions/exceptions.txt Creating package registration file: /tmp/pkgConf-exceptions-0.8.21251300606959372260.1 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.3/exceptions-0.8.2.1-Jkl94O78MPXBSznLIarVn2 Registering exceptions-0.8.2.1... Installed exceptions-0.8.2.1 Configuring mmorph-1.0.6... Building mmorph-1.0.6... Preprocessing library mmorph-1.0.6... [1 of 2] Compiling Control.Monad.Morph ( src/Control/Monad/Morph.hs, dist/build/Control/Monad/Morph.o ) src/Control/Monad/Morph.hs:76:1: Warning: Module ‘Control.Monad.Trans.Error’ is deprecated: Use Control.Monad.Trans.Except instead src/Control/Monad/Morph.hs:112:20: Warning: In the use of type constructor or class ‘E.ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:113:19: Warning: In the use of data constructor ‘E.ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:113:34: Warning: In the use of ‘E.runErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:233:11: Warning: In the use of type constructor or class ‘E.Error’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:233:33: Warning: In the use of type constructor or class ‘E.ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:234:17: Warning: In the use of data constructor ‘E.ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:235:14: Warning: In the use of ‘E.runErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:235:30: Warning: In the use of ‘E.runErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" [2 of 2] Compiling Control.Monad.Trans.Compose ( src/Control/Monad/Trans/Compose.hs, dist/build/Control/Monad/Trans/Compose.o ) In-place registering mmorph-1.0.6... Running Haddock for mmorph-1.0.6... Running hscolour for mmorph-1.0.6... Preprocessing library mmorph-1.0.6... Preprocessing library mmorph-1.0.6... src/Control/Monad/Morph.hs:76:1: Warning: Module ‘Control.Monad.Trans.Error’ is deprecated: Use Control.Monad.Trans.Except instead src/Control/Monad/Morph.hs:112:20: Warning: In the use of type constructor or class ‘E.ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:113:19: Warning: In the use of data constructor ‘E.ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:113:34: Warning: In the use of ‘E.runErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:233:11: Warning: In the use of type constructor or class ‘E.Error’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:233:33: Warning: In the use of type constructor or class ‘E.ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:234:17: Warning: In the use of data constructor ‘E.ErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:235:14: Warning: In the use of ‘E.runErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" src/Control/Monad/Morph.hs:235:30: Warning: In the use of ‘E.runErrorT’ (imported from Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" Haddock coverage: 100% ( 22 / 22) in 'Control.Monad.Morph' 100% ( 4 / 4) in 'Control.Monad.Trans.Compose' Documentation created: dist/doc/html/mmorph/index.html, dist/doc/html/mmorph/mmorph.txt Creating package registration file: /tmp/pkgConf-mmorph-1.0333582338628974580.6 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.3/mmorph-1.0.6-2Jm5FlYBlmjDhcU1ovZRKP Registering mmorph-1.0.6... Installed mmorph-1.0.6 Configuring transformers-base-0.4.4... Building transformers-base-0.4.4... Preprocessing library transformers-base-0.4.4... [1 of 1] Compiling Control.Monad.Base ( src/Control/Monad/Base.hs, dist/build/Control/Monad/Base.o ) src/Control/Monad/Base.hs:22:1: Warning: The import of ‘Data.Monoid’ is redundant except perhaps to import instances from ‘Data.Monoid’ To import instances alone, use: import Data.Monoid() src/Control/Monad/Base.hs:24:1: Warning: The import of ‘Control.Applicative’ is redundant except perhaps to import instances from ‘Control.Applicative’ To import instances alone, use: import Control.Applicative() In-place registering transformers-base-0.4.4... Running Haddock for transformers-base-0.4.4... Running hscolour for transformers-base-0.4.4... Preprocessing library transformers-base-0.4.4... Preprocessing library transformers-base-0.4.4... src/Control/Monad/Base.hs:22:1: Warning: The import of ‘Data.Monoid’ is redundant except perhaps to import instances from ‘Data.Monoid’ To import instances alone, use: import Data.Monoid() src/Control/Monad/Base.hs:24:1: Warning: The import of ‘Control.Applicative’ is redundant except perhaps to import instances from ‘Control.Applicative’ To import instances alone, use: import Control.Applicative() Haddock coverage: 33% ( 1 / 3) in 'Control.Monad.Base' Missing documentation for: Module header MonadBase (src/Control/Monad/Base.hs:50) Documentation created: dist/doc/html/transformers-base/index.html, dist/doc/html/transformers-base/transformers-base.txt Creating package registration file: /tmp/pkgConf-transformers-base-0.419103009252030449291.4 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.3/transformers-base-0.4.4-LEY6N2K8lWyKssxi9ZZ0NE Registering transformers-base-0.4.4... Installed transformers-base-0.4.4 Downloading pipes-4.2.0... Configuring pipes-4.2.0... Building pipes-4.2.0... Preprocessing library pipes-4.2.0... [1 of 6] Compiling Pipes.Internal ( src/Pipes/Internal.hs, dist/build/Pipes/Internal.o ) [2 of 6] Compiling Pipes.Core ( src/Pipes/Core.hs, dist/build/Pipes/Core.o ) [3 of 6] Compiling Pipes.Lift ( src/Pipes/Lift.hs, dist/build/Pipes/Lift.o ) [4 of 6] Compiling Pipes ( src/Pipes.hs, dist/build/Pipes.o ) [5 of 6] Compiling Pipes.Prelude ( src/Pipes/Prelude.hs, dist/build/Pipes/Prelude.o ) [6 of 6] Compiling Pipes.Tutorial ( src/Pipes/Tutorial.hs, dist/build/Pipes/Tutorial.o ) In-place registering pipes-4.2.0... Running Haddock for pipes-4.2.0... Running hscolour for pipes-4.2.0... Preprocessing library pipes-4.2.0... Preprocessing library pipes-4.2.0... Haddock coverage: 100% ( 7 / 7) in 'Pipes.Internal' 100% ( 55 / 55) in 'Pipes.Core' 100% ( 31 / 31) in 'Pipes.Lift' 100% ( 44 / 44) in 'Pipes' 100% ( 73 / 73) in 'Pipes.Prelude' 100% ( 23 / 23) in 'Pipes.Tutorial' Warning: Pipes: could not find link destinations for: Array Documentation created: dist/doc/html/pipes/index.html, dist/doc/html/pipes/pipes.txt Creating package registration file: /tmp/pkgConf-pipes-4.24101340471038626924.0 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.3/pipes-4.2.0-B7lJuMSmOwcIsfNdSHEZ8J Registering pipes-4.2.0... Installed pipes-4.2.0 Configuring monad-control-1.0.1.0... Building monad-control-1.0.1.0... Preprocessing library monad-control-1.0.1.0... [1 of 1] Compiling Control.Monad.Trans.Control ( Control/Monad/Trans/Control.hs, dist/build/Control/Monad/Trans/Control.o ) In-place registering monad-control-1.0.1.0... Running Haddock for monad-control-1.0.1.0... Running hscolour for monad-control-1.0.1.0... Preprocessing library monad-control-1.0.1.0... Preprocessing library monad-control-1.0.1.0... Haddock coverage: 93% ( 27 / 29) in 'Control.Monad.Trans.Control' Missing documentation for: MonadTransControl (Control/Monad/Trans/Control.hs:110) MonadBaseControl (Control/Monad/Trans/Control.hs:292) Documentation created: dist/doc/html/monad-control/index.html, dist/doc/html/monad-control/monad-control.txt Creating package registration file: /tmp/pkgConf-monad-control-1.0.11936060910928140528.0 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.3/monad-control-1.0.1.0-DCjMscrbIXdFHUrAMwdfaD Registering monad-control-1.0.1.0... Installed monad-control-1.0.1.0 Downloading pipes-safe-2.2.4... Configuring pipes-safe-2.2.4... Building pipes-safe-2.2.4... Preprocessing library pipes-safe-2.2.4... [1 of 2] Compiling Pipes.Safe ( src/Pipes/Safe.hs, dist/build/Pipes/Safe.o ) src/Pipes/Safe.hs:88:1: Warning: The import of ‘Applicative’ from module ‘Control.Applicative’ is redundant src/Pipes/Safe.hs:133:1: Warning: The import of ‘Data.Monoid’ is redundant except perhaps to import instances from ‘Data.Monoid’ To import instances alone, use: import Data.Monoid() [2 of 2] Compiling Pipes.Safe.Prelude ( src/Pipes/Safe/Prelude.hs, dist/build/Pipes/Safe/Prelude.o ) In-place registering pipes-safe-2.2.4... Running Haddock for pipes-safe-2.2.4... Running hscolour for pipes-safe-2.2.4... Preprocessing library pipes-safe-2.2.4... Preprocessing library pipes-safe-2.2.4... src/Pipes/Safe.hs:88:1: Warning: The import of ‘Applicative’ from module ‘Control.Applicative’ is redundant src/Pipes/Safe.hs:133:1: Warning: The import of ‘Data.Monoid’ is redundant except perhaps to import instances from ‘Data.Monoid’ To import instances alone, use: import Data.Monoid() Haddock coverage: 100% ( 19 / 19) in 'Pipes.Safe' 100% ( 7 / 7) in 'Pipes.Safe.Prelude' Documentation created: dist/doc/html/pipes-safe/index.html, dist/doc/html/pipes-safe/pipes-safe.txt Creating package registration file: /tmp/pkgConf-pipes-safe-2.22025503991738076217.4 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.3/pipes-safe-2.2.4-0j5Q7a1Ag1wGXFdn61hSo1 Registering pipes-safe-2.2.4... Installed pipes-safe-2.2.4