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     exceptions-0.10.4
Starting     transformers-compat-0.6.5
Starting     primitive-0.7.0.0
Building     clock-0.8
Building     exceptions-0.10.4
Building     transformers-compat-0.6.5
Building     primitive-0.7.0.0
Completed    clock-0.8
Starting     utf8-string-1.0.1.1
Building     utf8-string-1.0.1.1
Completed    transformers-compat-0.6.5
Completed    exceptions-0.10.4
Completed    utf8-string-1.0.1.1
Completed    primitive-0.7.0.0
Starting     atomic-primops-0.8.3
Building     atomic-primops-0.8.3
Completed    atomic-primops-0.8.3
Starting     prometheus-client-1.0.0
Building     prometheus-client-1.0.0
Completed    prometheus-client-1.0.0
Downloading  prometheus-metrics-ghc-1.0.1
Downloaded   prometheus-metrics-ghc-1.0.1
Starting     prometheus-metrics-ghc-1.0.1
Building     prometheus-metrics-ghc-1.0.1
Completed    prometheus-metrics-ghc-1.0.1