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:
Cabal-2.4.0.1
libiserv-8.6.3
ghci-8.6.3
ghc-8.6.3
ghc-boot-8.6.3
Continuing even though the plan contains dangerous reinstalls.
Starting     appar-0.1.7
Starting     bsb-http-chunked-0.0.0.4
Starting     auto-update-0.1.4
Starting     basement-0.0.8
Building     appar-0.1.7
Building     bsb-http-chunked-0.0.0.4
Building     auto-update-0.1.4
Building     basement-0.0.8
Completed    bsb-http-chunked-0.0.0.4
Starting     byteorder-1.0.4
Completed    appar-0.1.7
Starting     containers-0.5.11.0
Completed    auto-update-0.1.4
Starting     data-default-class-0.1.2.0
Building     byteorder-1.0.4
Building     containers-0.5.11.0
Building     data-default-class-0.1.2.0
Completed    byteorder-1.0.4
Starting     integer-logarithms-1.0.2.2
Completed    data-default-class-0.1.2.0
Building     integer-logarithms-1.0.2.2
Starting     network-3.0.0.0
Completed    integer-logarithms-1.0.2.2
Starting     network-byte-order-0.0.0.0
Building     network-byte-order-0.0.0.0
Building     network-3.0.0.0
Completed    network-byte-order-0.0.0.0
Starting     primitive-0.6.4.0
Building     primitive-0.6.4.0
Completed    network-3.0.0.0
Starting     random-1.1
Building     random-1.1
Completed    random-1.1
Starting     semigroups-0.18.5
Building     semigroups-0.18.5
Completed    primitive-0.6.4.0
Starting     transformers-compat-0.6.2
Completed    semigroups-0.18.5
Starting     unix-compat-0.5.1
Building     transformers-compat-0.6.2
Building     unix-compat-0.5.1
Completed    unix-compat-0.5.1
Starting     word8-0.1.3
Building     word8-0.1.3
Completed    transformers-compat-0.6.2
Starting     zlib-0.6.2
Building     zlib-0.6.2
Completed    word8-0.1.3
Starting     simple-sendfile-0.2.28
Building     simple-sendfile-0.2.28
Completed    simple-sendfile-0.2.28
Starting     atomic-primops-0.8.2
Building     atomic-primops-0.8.2
Completed    zlib-0.6.2
Starting     exceptions-0.10.0
Completed    atomic-primops-0.8.2
Building     exceptions-0.10.0
Completed    exceptions-0.10.0
Completed    basement-0.0.8
Starting     memory-0.14.18
Building     memory-0.14.18
Completed    containers-0.5.11.0
Starting     iproute-1.7.7
Starting     binary-0.8.6.0
Building     iproute-1.7.7
Building     binary-0.8.6.0
Completed    iproute-1.7.7
Completed    binary-0.8.6.0
Starting     text-1.2.3.1
Completed    memory-0.14.18
Building     text-1.2.3.1
Completed    text-1.2.3.1
Starting     mime-types-0.1.0.9
Starting     cookie-0.4.4
Starting     hashable-1.2.7.0
Starting     parsec-3.1.13.0
Building     cookie-0.4.4
Building     mime-types-0.1.0.9
Building     parsec-3.1.13.0
Building     hashable-1.2.7.0
Completed    cookie-0.4.4
Starting     blaze-builder-0.4.1.0
Building     blaze-builder-0.4.1.0
Completed    hashable-1.2.7.0
Starting     unordered-containers-0.2.10.0
Building     unordered-containers-0.2.10.0
Completed    blaze-builder-0.4.1.0
Starting     scientific-0.3.6.2
Completed    mime-types-0.1.0.9
Starting     psqueues-0.2.7.1
Building     scientific-0.3.6.2
Completed    parsec-3.1.13.0
Starting     case-insensitive-1.2.0.11
Building     psqueues-0.2.7.1
Building     case-insensitive-1.2.0.11
Completed    case-insensitive-1.2.0.11
Starting     async-2.2.1
Building     async-2.2.1
Completed    scientific-0.3.6.2
Starting     network-uri-2.6.1.0
Building     network-uri-2.6.1.0
Completed    async-2.2.1
Starting     http-types-0.12.2
Completed    psqueues-0.2.7.1
Starting     attoparsec-0.13.2.2
Building     http-types-0.12.2
Building     attoparsec-0.13.2.2
Completed    unordered-containers-0.2.10.0
Starting     streaming-commons-0.2.1.0
Building     streaming-commons-0.2.1.0
Completed    network-uri-2.6.1.0
Starting     http2-1.6.4
Building     http2-1.6.4
Completed    http-types-0.12.2
Starting     vault-0.3.1.2
Building     vault-0.3.1.2
Completed    vault-0.3.1.2
Starting     wai-3.2.2
Building     wai-3.2.2
Completed    streaming-commons-0.2.1.0
Starting     http-client-0.5.14
Completed    wai-3.2.2
Completed    attoparsec-0.13.2.2
Starting     http-date-0.0.8
Building     http-client-0.5.14
Building     http-date-0.0.8
Completed    http-date-0.0.8
Completed    http2-1.6.4
Starting     warp-3.2.26
Building     warp-3.2.26
Completed    http-client-0.5.14
Completed    warp-3.2.26
Downloading  prometheus-2.1.1
Downloaded   prometheus-2.1.1
Starting     prometheus-2.1.1
Building     prometheus-2.1.1
Completed    prometheus-2.1.1