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-1.2
Starting     exceptions-0.10.4
Starting     colour-2.3.5
Starting     prettyprinter-1.6.1
Building     StateVar-1.2
Building     exceptions-0.10.4
Building     colour-2.3.5
Building     prettyprinter-1.6.1
Completed    StateVar-1.2
Starting     contravariant-1.5.2
Building     contravariant-1.5.2
Completed    exceptions-0.10.4
Completed    contravariant-1.5.2
Completed    prettyprinter-1.6.1
Completed    colour-2.3.5
Starting     ansi-terminal-0.10.3
Building     ansi-terminal-0.10.3
Completed    ansi-terminal-0.10.3
Starting     prettyprinter-ansi-terminal-1.1.1.2
Building     prettyprinter-ansi-terminal-1.1.1.2
Completed    prettyprinter-ansi-terminal-1.1.1.2
Downloading  lumberjack-0.1.0.1
Downloaded   lumberjack-0.1.0.1
Starting     lumberjack-0.1.0.1
Building     lumberjack-0.1.0.1
Completed    lumberjack-0.1.0.1