Resolving dependencies... Configuring bytestring-builder-0.10.6.0.0... Building bytestring-builder-0.10.6.0.0... Preprocessing library bytestring-builder-0.10.6.0.0... In-place registering bytestring-builder-0.10.6.0.0... Running Haddock for bytestring-builder-0.10.6.0.0... 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-bytestring-builder-0.10.6.0336465782861021530.0 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.2/bytestring-builder-0.10.6.0.0-27hCMbWMJcMCIYxIUoATXE Registering bytestring-builder-0.10.6.0.0... Installed bytestring-builder-0.10.6.0.0