Resolving dependencies... Configuring nixos-types-1.5... Building nixos-types-1.5... Preprocessing library nixos-types-1.5... In-place registering nixos-types-1.5... Running Haddock for nixos-types-1.5... 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-nixos-types-1336465782861021530.5 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.2/nixos-types-1.5-JlP22Xu6gfo3mqPQ8EkmrH Registering nixos-types-1.5... Installed nixos-types-1.5