Configuring invariant-0.5.3... Preprocessing library for invariant-0.5.3.. Building library for invariant-0.5.3.. [1 of 4] Compiling Data.Functor.Invariant ( src/Data/Functor/Invariant.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Functor/Invariant.o ) [2 of 4] Compiling Data.Functor.Invariant.TH.Internal ( src/Data/Functor/Invariant/TH/Internal.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Functor/Invariant/TH/Internal.o ) [3 of 4] Compiling Data.Functor.Invariant.TH ( src/Data/Functor/Invariant/TH.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Functor/Invariant/TH.o ) [4 of 4] Compiling Paths_invariant ( .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/autogen/Paths_invariant.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Paths_invariant.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/invariant-0.5.3-COCiLnaO8ceLaFLP8ApMB8 Registering library for invariant-0.5.3..