Warning: The install command is a part of the legacy v1 style of cabal usage. Please switch to using either the new project style and the new-install command or the legacy v1-install alias as new-style projects will become the default in the next version of cabal-install. Please file a bug if you cannot replicate a working v1- use case with the new-style commands. For more information, see: https://wiki.haskell.org/Cabal/NewBuild Resolving dependencies... Warning: The following packages are likely to be broken by the reinstalls: parsec-3.1.13.0 Cabal-2.4.0.1 libiserv-8.6.1 ghci-8.6.1 ghc-8.6.1 ghc-boot-8.6.1 Continuing even though the plan contains dangerous reinstalls. Starting StateVar-1.1.1.1 Starting base-orphans-0.8 Building StateVar-1.1.1.1 Building base-orphans-0.8 Completed base-orphans-0.8 Starting cabal-doctest-1.0.6 Completed StateVar-1.1.1.1 Starting clock-0.7.2 Building cabal-doctest-1.0.6 Building clock-0.7.2 Completed clock-0.7.2 Starting containers-0.5.11.0 Completed cabal-doctest-1.0.6 Starting haskus-utils-types-1.3 Building containers-0.5.11.0 Building haskus-utils-types-1.3 Completed haskus-utils-types-1.3 Starting semigroups-0.18.5 Building semigroups-0.18.5 Completed semigroups-0.18.5 Starting tagged-0.8.6 Building tagged-0.8.6 Completed tagged-0.8.6 Starting transformers-compat-0.6.2 Building transformers-compat-0.6.2 Completed transformers-compat-0.6.2 Starting contravariant-1.5 Building contravariant-1.5 Completed contravariant-1.5 Starting extra-1.6.13 Building extra-1.6.13 Completed extra-1.6.13 Starting distributive-0.6 Building distributive-0.6 Completed distributive-0.6 Starting transformers-base-0.4.5.2 Building transformers-base-0.4.5.2 Completed transformers-base-0.4.5.2 Starting exceptions-0.10.0 Building exceptions-0.10.0 Completed exceptions-0.10.0 Completed containers-0.5.11.0 Starting th-abstraction-0.2.8.0 Starting comonad-5.0.4 Building th-abstraction-0.2.8.0 Building comonad-5.0.4 Completed th-abstraction-0.2.8.0 Starting binary-0.8.6.0 Building binary-0.8.6.0 Completed comonad-5.0.4 Starting bifunctors-5.5.3 Building bifunctors-5.5.3 Completed binary-0.8.6.0 Starting text-1.2.3.1 Building text-1.2.3.1 Completed bifunctors-5.5.3 Starting profunctors-5.3 Building profunctors-5.3 Completed profunctors-5.3 Completed text-1.2.3.1 Starting hashable-1.2.7.0 Building hashable-1.2.7.0 Completed hashable-1.2.7.0 Starting unordered-containers-0.2.9.0 Building unordered-containers-0.2.9.0 Completed unordered-containers-0.2.9.0 Starting semigroupoids-5.3.1 Building semigroupoids-5.3.1 Completed semigroupoids-5.3.1 Starting free-5.1 Building free-5.1 Completed free-5.1 Starting recursion-schemes-5.0.3 Building recursion-schemes-5.0.3 Completed recursion-schemes-5.0.3 Starting haskus-utils-data-1.1 Building haskus-utils-data-1.1 Completed haskus-utils-data-1.1 Starting haskus-utils-variant-2.3 Building haskus-utils-variant-2.3 Completed haskus-utils-variant-2.3