Resolving dependencies... Downloading ed25519-0.0.3.0... Configuring ed25519-0.0.3.0... Building ed25519-0.0.3.0... Preprocessing library ed25519-0.0.3.0... [1 of 1] Compiling Crypto.Sign.Ed25519 ( src/Crypto/Sign/Ed25519.hs, dist/build/Crypto/Sign/Ed25519.o ) In-place registering ed25519-0.0.3.0... Running Haddock for ed25519-0.0.3.0... 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-ed25519-0.0.3278722862233665123.0 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.2/ed25519-0.0.3.0-GANbRtDuskJCrp1ZCRxJA6 Registering ed25519-0.0.3.0... Installed ed25519-0.0.3.0