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...
Warning: The following packages are likely to be broken by the reinstalls:
parsec-3.1.13.0
Cabal-2.4.0.1
Continuing even though the plan contains dangerous reinstalls.
Starting     colour-2.3.4
Starting     fingertree-0.1.4.2
Starting     dlist-0.8.0.5
Starting     base-compat-0.10.5
Building     colour-2.3.4
Building     fingertree-0.1.4.2
Building     dlist-0.8.0.5
Building     base-compat-0.10.5
Completed    dlist-0.8.0.5
Starting     hashable-1.2.7.0
Building     hashable-1.2.7.0
Completed    base-compat-0.10.5
Starting     hourglass-0.2.12
Completed    fingertree-0.1.4.2
Starting     integer-logarithms-1.0.2.2
Building     hourglass-0.2.12
Completed    colour-2.3.4
Starting     prettyprinter-1.2.1
Completed    hashable-1.2.7.0
Starting     random-1.1
Building     integer-logarithms-1.0.2.2
Building     prettyprinter-1.2.1
Building     random-1.1
Completed    integer-logarithms-1.0.2.2
Starting     terminal-size-0.3.2.1
Building     terminal-size-0.3.2.1
Completed    random-1.1
Starting     th-abstraction-0.2.11.0
Completed    terminal-size-0.3.2.1
Starting     time-locale-compat-0.1.1.5
Building     th-abstraction-0.2.11.0
Building     time-locale-compat-0.1.1.5
Completed    time-locale-compat-0.1.1.5
Starting     transformers-0.5.6.2
Completed    prettyprinter-1.2.1
Starting     ansi-terminal-0.9
Building     transformers-0.5.6.2
Building     ansi-terminal-0.9
Completed    hourglass-0.2.12
Starting     unordered-containers-0.2.10.0
Building     unordered-containers-0.2.10.0
Completed    th-abstraction-0.2.11.0
Starting     text-short-0.1.2
Building     text-short-0.1.2
Completed    ansi-terminal-0.9
Starting     async-2.2.1
Building     async-2.2.1
Completed    async-2.2.1
Starting     uuid-types-1.0.3
Completed    text-short-0.1.2
Starting     prettyprinter-ansi-terminal-1.1.1.2
Building     uuid-types-1.0.3
Building     prettyprinter-ansi-terminal-1.1.1.2
Completed    prettyprinter-ansi-terminal-1.1.1.2
Completed    unordered-containers-0.2.10.0
Completed    uuid-types-1.0.3
Completed    transformers-0.5.6.2
Starting     transformers-compat-0.6.2
Starting     tagged-0.8.6
Starting     primitive-0.6.4.0
Starting     mtl-2.2.2
Building     transformers-compat-0.6.2
Building     tagged-0.8.6
Building     mtl-2.2.2
Building     primitive-0.6.4.0
Completed    tagged-0.8.6
Completed    transformers-compat-0.6.2
Completed    mtl-2.2.2
Starting     exceptions-0.10.0
Building     exceptions-0.10.0
Completed    exceptions-0.10.0
Starting     safe-exceptions-0.1.7.0
Building     safe-exceptions-0.1.7.0
Completed    safe-exceptions-0.1.7.0
Completed    primitive-0.6.4.0
Starting     scientific-0.3.6.2
Starting     vector-0.12.0.2
Building     scientific-0.3.6.2
Building     vector-0.12.0.2
Completed    scientific-0.3.6.2
Starting     attoparsec-0.13.2.2
Building     attoparsec-0.13.2.2
Completed    attoparsec-0.13.2.2
Completed    vector-0.12.0.2
Starting     aeson-1.4.2.0
Building     aeson-1.4.2.0
Completed    aeson-1.4.2.0
Starting     chronologique-0.3.1.1
Building     chronologique-0.3.1.1
Completed    chronologique-0.3.1.1
Downloading  unbeliever-0.9.3.2
Downloaded   unbeliever-0.9.3.2
Starting     unbeliever-0.9.3.2
Building     unbeliever-0.9.3.2
Completed    unbeliever-0.9.3.2