Resolving dependencies... Configuring MaybeT-0.1.2... Building MaybeT-0.1.2... Preprocessing library MaybeT-0.1.2... [1 of 1] Compiling Control.Monad.Maybe ( Control/Monad/Maybe.hs, dist/build/Control/Monad/Maybe.o ) In-place registering MaybeT-0.1.2... Running Haddock for MaybeT-0.1.2... Running hscolour for MaybeT-0.1.2... Preprocessing library MaybeT-0.1.2... Preprocessing library MaybeT-0.1.2... Haddock coverage: 100% ( 6 / 6) in 'Control.Monad.Maybe' Documentation created: dist/doc/html/MaybeT/index.html Installing library in /srv/hackage/var/build/tmp-install/lib/x86_64-linux-ghc-7.6.3/MaybeT-0.1.2 Registering MaybeT-0.1.2... Installed MaybeT-0.1.2 Downloading stateful-mtl-1.0.4... Configuring stateful-mtl-1.0.4... Building stateful-mtl-1.0.4... Preprocessing library stateful-mtl-1.0.4... [1 of 7] Compiling Control.Monad.Trans.Operations ( Control/Monad/Trans/Operations.hs, dist/build/Control/Monad/Trans/Operations.o ) [2 of 7] Compiling Control.Monad.ST.Class ( Control/Monad/ST/Class.hs, dist/build/Control/Monad/ST/Class.o ) [3 of 7] Compiling Control.Monad.Array.Class ( Control/Monad/Array/Class.hs, dist/build/Control/Monad/Array/Class.o ) Control/Monad/Array/Class.hs:23:9: The INLINE pragma for default method `askSize' lacks an accompanying binding Failed to install stateful-mtl-1.0.4 cabal: Error: some packages failed to install: pqueue-mtl-1.0.4 depends on stateful-mtl-1.0.4 which failed to install. stateful-mtl-1.0.4 failed during the building phase. The exception was: ExitFailure 1