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 colour-2.3.4 Starting transformers-compat-0.6.2 Building colour-2.3.4 Building transformers-compat-0.6.2 Completed transformers-compat-0.6.2 Completed colour-2.3.4 Starting ansi-terminal-0.8.2 Building ansi-terminal-0.8.2 Completed ansi-terminal-0.8.2 Starting ansi-wl-pprint-0.6.8.2 Building ansi-wl-pprint-0.6.8.2 Completed ansi-wl-pprint-0.6.8.2 Starting optparse-applicative-0.14.3.0 Building optparse-applicative-0.14.3.0 Completed optparse-applicative-0.14.3.0 Starting prof-flamegraph-1.0.0 Building prof-flamegraph-1.0.0 Completed prof-flamegraph-1.0.0