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     extensible-exceptions-0.1.1.4
Building     extensible-exceptions-0.1.1.4
Completed    extensible-exceptions-0.1.1.4
Starting     alsa-core-0.5.0.1
Building     alsa-core-0.5.0.1
Completed    alsa-core-0.5.0.1
Downloading  alsa-mixer-0.3.0
Downloaded   alsa-mixer-0.3.0
Starting     alsa-mixer-0.3.0
Building     alsa-mixer-0.3.0
Completed    alsa-mixer-0.3.0