Resolving dependencies... Downloading ghc-generic-instances-0.1.0.0... Configuring ghc-generic-instances-0.1.0.0... Building ghc-generic-instances-0.1.0.0... Preprocessing library ghc-generic-instances-0.1.0.0... [1 of 1] Compiling Language.Haskell.GHC.GenericInstances ( src/Language/Haskell/GHC/GenericInstances.hs, dist/build/Language/Haskell/GHC/GenericInstances.o ) In-place registering ghc-generic-instances-0.1.0.0... Running Haddock for ghc-generic-instances-0.1.0.0... cabal: Haddock's internal GHC version must match the configured GHC version. The GHC version is 7.10.2 but haddock is using GHC version 7.8.3 Creating package registration file: /tmp/pkgConf-ghc-generic-instances-0.1.0278722862233665123.0 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.2/ghc-generic-instances-0.1.0.0-4RfHwO8cDXuLy015WmL6Pb Registering ghc-generic-instances-0.1.0.0... Installed ghc-generic-instances-0.1.0.0