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
Building     StateVar-1.1.1.1
Completed    StateVar-1.1.1.1
Starting     contravariant-1.5
Building     contravariant-1.5
Completed    contravariant-1.5
Downloading  lrucache-1.2.0.1
Downloaded   lrucache-1.2.0.1
Starting     lrucache-1.2.0.1
Building     lrucache-1.2.0.1
Completed    lrucache-1.2.0.1