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     language-c99-0.1.1
Starting     random-1.1
Starting     dlist-0.8.0.6
Building     random-1.1
Building     dlist-0.8.0.6
Building     language-c99-0.1.1
Completed    dlist-0.8.0.6
Completed    random-1.1
Starting     copilot-core-3.0
Building     copilot-core-3.0
Completed    language-c99-0.1.1
Starting     language-c99-util-0.1.1
Building     language-c99-util-0.1.1
Completed    language-c99-util-0.1.1
Starting     language-c99-simple-0.1.1
Building     language-c99-simple-0.1.1
Completed    copilot-core-3.0
Completed    language-c99-simple-0.1.1
Downloading  copilot-c99-3.0
Downloaded   copilot-c99-3.0
Starting     copilot-c99-3.0
Building     copilot-c99-3.0
Completed    copilot-c99-3.0