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...
Starting     StateVar-1.1.1.1
Starting     cabal-doctest-1.0.6
Starting     ghc-paths-0.1.0.9
Starting     base-orphans-0.8
Building     cabal-doctest-1.0.6
Building     StateVar-1.1.1.1
Building     base-orphans-0.8
Completed    base-orphans-0.8
Starting     hashable-1.2.7.0
Completed    StateVar-1.1.1.1
Starting     semigroups-0.18.5
Building     hashable-1.2.7.0
Building     semigroups-0.18.5
Building     ghc-paths-0.1.0.9
Completed    cabal-doctest-1.0.6
Starting     syb-0.7
Building     syb-0.7
Completed    semigroups-0.18.5
Starting     tagged-0.8.6
Building     tagged-0.8.6
Completed    ghc-paths-0.1.0.9
Starting     th-abstraction-0.2.11.0
Building     th-abstraction-0.2.11.0
Completed    hashable-1.2.7.0
Starting     transformers-compat-0.6.2
Building     transformers-compat-0.6.2
Completed    syb-0.7
Starting     contravariant-1.5
Completed    tagged-0.8.6
Starting     unordered-containers-0.2.10.0
Building     contravariant-1.5
Building     unordered-containers-0.2.10.0
Completed    transformers-compat-0.6.2
Starting     distributive-0.6
Completed    th-abstraction-0.2.11.0
Starting     transformers-base-0.4.5.2
Building     transformers-base-0.4.5.2
Completed    contravariant-1.5
Starting     exceptions-0.10.0
Building     exceptions-0.10.0
Completed    transformers-base-0.4.5.2
Building     distributive-0.6
Completed    distributive-0.6
Starting     comonad-5.0.4
Completed    exceptions-0.10.0
Building     comonad-5.0.4
Completed    unordered-containers-0.2.10.0
Completed    comonad-5.0.4
Starting     bifunctors-5.5.3
Building     bifunctors-5.5.3
Completed    bifunctors-5.5.3
Starting     semigroupoids-5.3.2
Starting     profunctors-5.3
Building     profunctors-5.3
Building     semigroupoids-5.3.2
Completed    profunctors-5.3
Completed    semigroupoids-5.3.2
Starting     free-5.1
Building     free-5.1
Completed    free-5.1
Downloading  ghc-exactprint-0.6
Downloaded   ghc-exactprint-0.6
Starting     ghc-exactprint-0.6
Building     ghc-exactprint-0.6
Completed    ghc-exactprint-0.6