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     split-0.2.3.3
Building     split-0.2.3.3
Completed    split-0.2.3.3
Downloading  debian-build-0.10.2.0
Downloaded   debian-build-0.10.2.0
Starting     debian-build-0.10.2.0
Building     debian-build-0.10.2.0
Completed    debian-build-0.10.2.0