Configuring semigroups-0.18.5... Preprocessing library for semigroups-0.18.5.. Building library for semigroups-0.18.5.. [1 of 1] Compiling Data.Semigroup.Generic ( src/Data/Semigroup/Generic.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Semigroup/Generic.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/semigroups-0.18.5-6T2lH5F6zyQIdwR3JYKMO3 Registering library for semigroups-0.18.5..