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     clock-0.8
Starting     semigroups-0.19.1
Starting     hashable-1.3.0.0
Starting     ghc-lib-parser-8.8.3.20200224
Building     clock-0.8
Building     semigroups-0.19.1
Building     hashable-1.3.0.0
Building     ghc-lib-parser-8.8.3.20200224
Completed    semigroups-0.19.1
Starting     syb-0.7.1
Building     syb-0.7.1
Completed    clock-0.8
Starting     extra-1.6.20
Building     extra-1.6.20
Completed    hashable-1.3.0.0
Starting     unordered-containers-0.2.10.0
Building     unordered-containers-0.2.10.0
Completed    syb-0.7.1
Completed    extra-1.6.20
Completed    unordered-containers-0.2.10.0
Starting     uniplate-1.6.12
Building     uniplate-1.6.12
Completed    uniplate-1.6.12
Completed    ghc-lib-parser-8.8.3.20200224
Downloading  ghc-lib-parser-ex-8.8.5.3
Downloaded   ghc-lib-parser-ex-8.8.5.3
Starting     ghc-lib-parser-ex-8.8.5.3
Building     ghc-lib-parser-ex-8.8.5.3
Completed    ghc-lib-parser-ex-8.8.5.3