cabal: Entering directory '/tmp/cabal-tmp-22422/transformers-base-0.4.5.2' Configuring transformers-base-0.4.5.2... Preprocessing library for transformers-base-0.4.5.2.. Building library for transformers-base-0.4.5.2.. [1 of 1] Compiling Control.Monad.Base ( src/Control/Monad/Base.hs, dist/dist-sandbox-3db2bb2d/build/Control/Monad/Base.o ) Installing library in /var/lib/jenkins/workspace/JHCR/.cabal-sandbox/lib/x86_64-linux-ghc-8.6.3/transformers-base-0.4.5.2-EuZzsSlzUfCIeg4YlOqmTn cabal: Leaving directory '/tmp/cabal-tmp-22422/transformers-base-0.4.5.2'