Resolving dependencies... Configuring dlist-0.8.0.2... Configuring base-compat-0.9.1... Building dlist-0.8.0.2... Building base-compat-0.9.1... Configuring primitive-0.6.1.0... Installed dlist-0.8.0.2 Building primitive-0.6.1.0... Configuring mtl-2.2.1... Installed base-compat-0.9.1 Building mtl-2.2.1... Configuring stm-2.4.4.1... Installed primitive-0.6.1.0 Configuring time-locale-compat-0.1.1.3... Installed mtl-2.2.1 Building stm-2.4.4.1... Building time-locale-compat-0.1.1.3... Configuring text-1.2.2.1... Installed time-locale-compat-0.1.1.3 Building text-1.2.2.1... Configuring transformers-compat-0.5.1.4... Installed stm-2.4.4.1 Building transformers-compat-0.5.1.4... Installed transformers-compat-0.5.1.4 Configuring vector-0.11.0.0... Building vector-0.11.0.0... Configuring exceptions-0.8.3... Installed text-1.2.2.1 Building exceptions-0.8.3... Configuring tagged-0.8.5... Installed exceptions-0.8.3 Building tagged-0.8.5... Configuring mmorph-1.0.7... Installed tagged-0.8.5 Building mmorph-1.0.7... Configuring transformers-base-0.4.4... Installed mmorph-1.0.7 Building transformers-base-0.4.4... Installed vector-0.11.0.0 Configuring hashable-1.2.4.0... Building hashable-1.2.4.0... Installed transformers-base-0.4.4 Configuring monad-control-1.0.1.0... Building monad-control-1.0.1.0... Installed hashable-1.2.4.0 Configuring scientific-0.3.4.9... Configuring unordered-containers-0.2.7.1... Installed monad-control-1.0.1.0 Building scientific-0.3.4.9... Building unordered-containers-0.2.7.1... Configuring lifted-base-0.2.3.8... Installed scientific-0.3.4.9 Building lifted-base-0.2.3.8... Installed lifted-base-0.2.3.8 Configuring attoparsec-0.13.1.0... Building attoparsec-0.13.1.0... Configuring resourcet-1.1.8.1... Installed unordered-containers-0.2.7.1 Building resourcet-1.1.8.1... Installed resourcet-1.1.8.1 Configuring conduit-1.2.8... Building conduit-1.2.8... Failed to install conduit-1.2.8 Build log ( /home/builder/.cabal/logs/conduit-1.2.8.log ): cabal: Entering directory '/tmp/cabal-tmp-30162/conduit-1.2.8' Configuring conduit-1.2.8... Building conduit-1.2.8... Preprocessing library conduit-1.2.8... [1 of 8] Compiling Data.Conduit.Internal.Pipe ( Data/Conduit/Internal/Pipe.hs, dist/build/Data/Conduit/Internal/Pipe.o ) Data/Conduit/Internal/Pipe.hs:575:13: error: • Could not deduce (Monad m) arising from a use of ‘transPipe’ from the context: Functor m bound by the type signature for: hoist :: Functor m => (forall a. m a -> n a) -> Pipe l i o u m b -> Pipe l i o u n b at Data/Conduit/Internal/Pipe.hs:575:5-9 Possible fix: add (Monad m) to the context of the type signature for: hoist :: Functor m => (forall a. m a -> n a) -> Pipe l i o u m b -> Pipe l i o u n b • In the expression: transPipe In an equation for ‘hoist’: hoist = transPipe In the instance declaration for ‘MFunctor (Pipe l i o u)’ cabal: Leaving directory '/tmp/cabal-tmp-30162/conduit-1.2.8' Installed attoparsec-0.13.1.0 Configuring aeson-1.0.2.1... Building aeson-1.0.2.1... Installed aeson-1.0.2.1 cabal: Error: some packages failed to install: conduit-1.2.8 failed during the building phase. The exception was: ExitFailure 1 ndjson-conduit-0.1.0.4 depends on conduit-1.2.8 which failed to install.