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:
process-1.6.3.0
haskeline-0.7.4.3
ghc-8.6.3
Cabal-2.4.0.1
libiserv-8.6.3
ghci-8.6.3
directory-1.3.3.0
hpc-0.6.0.3
ghc-boot-8.6.3
Continuing even though the plan contains dangerous reinstalls.
Starting     cabal-doctest-1.0.8
Starting     base-orphans-0.8.2
Starting     cryptohash-md5-0.11.100.1
Starting     StateVar-1.2
Building     base-orphans-0.8.2
Building     cabal-doctest-1.0.8
Building     cryptohash-md5-0.11.100.1
Building     StateVar-1.2
Completed    StateVar-1.2
Starting     cryptohash-sha1-0.11.100.1
Completed    cryptohash-md5-0.11.100.1
Starting     dlist-0.8.0.7
Building     cryptohash-sha1-0.11.100.1
Building     dlist-0.8.0.7
Completed    cabal-doctest-1.0.8
Starting     hashable-1.3.0.0
Building     hashable-1.3.0.0
Completed    base-orphans-0.8.2
Starting     integer-logarithms-1.0.3
Completed    cryptohash-sha1-0.11.100.1
Starting     network-info-0.2.0.10
Building     integer-logarithms-1.0.3
Completed    dlist-0.8.0.7
Starting     primitive-0.7.0.1
Building     network-info-0.2.0.10
Building     primitive-0.7.0.1
Completed    integer-logarithms-1.0.3
Starting     selective-0.4
Completed    hashable-1.3.0.0
Starting     semigroups-0.19.1
Building     selective-0.4
Completed    network-info-0.2.0.10
Starting     tagged-0.8.6
Building     semigroups-0.19.1
Building     tagged-0.8.6
Completed    semigroups-0.19.1
Starting     template-haskell-compat-v0208-0.1.2.1
Building     template-haskell-compat-v0208-0.1.2.1
Completed    selective-0.4
Starting     th-abstraction-0.3.2.0
Completed    tagged-0.8.6
Starting     time-1.9.3
Building     th-abstraction-0.3.2.0
Completed    template-haskell-compat-v0208-0.1.2.1
Starting     transformers-compat-0.6.5
Building     time-1.9.3
Building     transformers-compat-0.6.5
Completed    th-abstraction-0.3.2.0
Starting     void-0.7.3
Completed    transformers-compat-0.6.5
Starting     contravariant-1.5.2
Building     void-0.7.3
Building     contravariant-1.5.2
Completed    void-0.7.3
Starting     unordered-containers-0.2.10.0
Completed    primitive-0.7.0.1
Starting     distributive-0.6.1
Building     unordered-containers-0.2.10.0
Completed    contravariant-1.5.2
Starting     vector-0.12.1.2
Building     distributive-0.6.1
Building     vector-0.12.1.2
Completed    distributive-0.6.1
Starting     scientific-0.3.6.2
Completed    time-1.9.3
Starting     contravariant-extras-0.3.5.1
Building     scientific-0.3.6.2
Building     contravariant-extras-0.3.5.1
Completed    unordered-containers-0.2.10.0
Starting     comonad-5.0.6
Completed    scientific-0.3.6.2
Starting     unix-2.7.2.2
Building     comonad-5.0.6
Completed    comonad-5.0.6
Starting     random-1.1
Building     random-1.1
Building     unix-2.7.2.2
Completed    random-1.1
Starting     bifunctors-5.5.7
Building     bifunctors-5.5.7
Completed    contravariant-extras-0.3.5.1
Starting     uuid-types-1.0.3
Building     uuid-types-1.0.3
Completed    uuid-types-1.0.3
Completed    bifunctors-5.5.7
Starting     profunctors-5.5.2
Starting     semigroupoids-5.3.4
Building     profunctors-5.5.2
Building     semigroupoids-5.3.4
Completed    vector-0.12.1.2
Completed    unix-2.7.2.2
Starting     entropy-0.4.1.5
Building     entropy-0.4.1.5
Completed    entropy-0.4.1.5
Starting     uuid-1.3.13
Completed    profunctors-5.5.2
Building     uuid-1.3.13
Completed    uuid-1.3.13
Completed    semigroupoids-5.3.4
Starting     either-5.0.1.1
Building     either-5.0.1.1
Completed    either-5.0.1.1
Downloading  rebase-1.6.0.1
Downloaded   rebase-1.6.0.1
Starting     rebase-1.6.0.1
Building     rebase-1.6.0.1
Completed    rebase-1.6.0.1
Downloading  rerebase-1.6.0.1
Downloaded   rerebase-1.6.0.1
Starting     rerebase-1.6.0.1
Building     rerebase-1.6.0.1
Completed    rerebase-1.6.0.1