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     clock-0.8
Starting     random-1.1
Starting     exceptions-0.10.4
Starting     hashable-1.3.0.0
Building     clock-0.8
Building     exceptions-0.10.4
Building     random-1.1
Building     hashable-1.3.0.0
Completed    clock-0.8
Completed    random-1.1
Completed    hashable-1.3.0.0
Starting     unordered-containers-0.2.10.0
Completed    exceptions-0.10.4
Building     unordered-containers-0.2.10.0
Completed    unordered-containers-0.2.10.0
Starting     opentelemetry-0.1.0
Building     opentelemetry-0.1.0
Completed    opentelemetry-0.1.0