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     transformers-compat-0.6.4
Building     transformers-compat-0.6.4
Completed    transformers-compat-0.6.4
Starting     exceptions-0.10.1
Building     exceptions-0.10.1
Completed    exceptions-0.10.1
Starting     safe-exceptions-0.1.7.0
Building     safe-exceptions-0.1.7.0
Completed    safe-exceptions-0.1.7.0
Downloading  di-core-1.0.3
Downloaded   di-core-1.0.3
Starting     di-core-1.0.3
Building     di-core-1.0.3
Completed    di-core-1.0.3
Downloading  di-handle-1.0.1
Downloaded   di-handle-1.0.1
Starting     di-handle-1.0.1
Building     di-handle-1.0.1
Completed    di-handle-1.0.1