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     primitive-0.6.4.0
Starting     void-0.7.2
Starting     semigroups-0.18.5
Starting     transformers-compat-0.6.4
Building     void-0.7.2
Building     semigroups-0.18.5
Building     primitive-0.6.4.0
Building     transformers-compat-0.6.4
Completed    void-0.7.2
Completed    semigroups-0.18.5
Completed    transformers-compat-0.6.4
Starting     mmorph-1.1.2
Starting     exceptions-0.10.1
Building     mmorph-1.1.2
Building     exceptions-0.10.1
Completed    mmorph-1.1.2
Completed    exceptions-0.10.1
Starting     pipes-4.3.9
Building     pipes-4.3.9
Completed    primitive-0.6.4.0
Completed    pipes-4.3.9
Downloading  bytestring-substring-0.1
Downloaded   bytestring-substring-0.1
Starting     bytestring-substring-0.1
Building     bytestring-substring-0.1
Completed    bytestring-substring-0.1