Configuring transformers-compat-0.6.5... Preprocessing library for transformers-compat-0.6.5.. Building library for transformers-compat-0.6.5.. [1 of 4] Compiling Control.Monad.Trans.Instances ( src/Control/Monad/Trans/Instances.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Control/Monad/Trans/Instances.o ) [2 of 4] Compiling Data.Functor.Classes.Generic.Internal ( generics/Data/Functor/Classes/Generic/Internal.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Functor/Classes/Generic/Internal.o ) [3 of 4] Compiling Data.Functor.Classes.Generic ( generics/Data/Functor/Classes/Generic.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Functor/Classes/Generic.o ) [4 of 4] Compiling Paths_transformers_compat ( .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/autogen/Paths_transformers_compat.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Paths_transformers_compat.o ) Installing library in /home/sv/.stack/snapshots/x86_64-linux/lts-13.22/8.6.5/lib/x86_64-linux-ghc-8.6.5/transformers-compat-0.6.5-JTHfwAgpAU6AqyWxijPF3Z Registering library for transformers-compat-0.6.5..