Resolving dependencies... Warning: The following packages are likely to be broken by the reinstalls: parsec-3.1.13.0 Cabal-2.4.0.1 Continuing even though the plan contains dangerous reinstalls. Starting dlist-0.8.0.8 Starting clock-0.8 Starting safe-0.3.18 Starting hashable-1.3.0.0 Building safe-0.3.18 Building dlist-0.8.0.8 Building hashable-1.3.0.0 Building clock-0.8 Completed clock-0.8 Starting semigroups-0.19.1 Completed dlist-0.8.0.8 Starting transformers-0.5.6.2 Building semigroups-0.19.1 Building transformers-0.5.6.2 Completed hashable-1.3.0.0 Starting unordered-containers-0.2.10.0 Completed semigroups-0.19.1 Starting extra-1.7.1 Completed safe-0.3.18 Building unordered-containers-0.2.10.0 Building extra-1.7.1 Completed extra-1.7.1 Completed unordered-containers-0.2.10.0 Completed transformers-0.5.6.2 Starting writer-cps-transformers-0.5.6.1 Starting mtl-2.2.2 Building writer-cps-transformers-0.5.6.1 Building mtl-2.2.2 Completed writer-cps-transformers-0.5.6.1 Completed mtl-2.2.2 Starting writer-cps-mtl-0.1.1.6 Building writer-cps-mtl-0.1.1.6 Completed writer-cps-mtl-0.1.1.6 Downloading intro-0.7.0.0 Downloaded intro-0.7.0.0 Starting intro-0.7.0.0 Building intro-0.7.0.0 Completed intro-0.7.0.0