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     sop-core-0.5.0.0
Building     sop-core-0.5.0.0
Completed    sop-core-0.5.0.0
Starting     generics-mrsop-2.2.0
Building     generics-mrsop-2.2.0
Completed    generics-mrsop-2.2.0
Downloading  generics-mrsop-gdiff-0.0.1
Downloaded   generics-mrsop-gdiff-0.0.1
Starting     generics-mrsop-gdiff-0.0.1
Building     generics-mrsop-gdiff-0.0.1
Completed    generics-mrsop-gdiff-0.0.1