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     StateVar-1.2
Starting     appar-0.1.8
Starting     SafeSemaphore-0.10.1
Starting     auto-update-0.1.6
Building     StateVar-1.2
Building     appar-0.1.8
Building     auto-update-0.1.6
Building     SafeSemaphore-0.10.1
Completed    appar-0.1.8
Starting     base-compat-0.11.1
Completed    StateVar-1.2
Starting     base-orphans-0.8.2
Completed    auto-update-0.1.6
Starting     base64-bytestring-1.0.0.3
Building     base-compat-0.11.1
Building     base-orphans-0.8.2
Building     base64-bytestring-1.0.0.3
Completed    SafeSemaphore-0.10.1
Starting     basement-0.0.11
Building     basement-0.0.11
Completed    base64-bytestring-1.0.0.3
Starting     blaze-builder-0.4.1.0
Building     blaze-builder-0.4.1.0
Completed    base-orphans-0.8.2
Starting     bloomfilter-2.0.1.0
Building     bloomfilter-2.0.1.0
Completed    blaze-builder-0.4.1.0
Starting     bsb-http-chunked-0.0.0.4
Building     bsb-http-chunked-0.0.0.4
Completed    base-compat-0.11.1
Starting     byteorder-1.0.4
Building     byteorder-1.0.4
Completed    bloomfilter-2.0.1.0
Starting     cabal-doctest-1.0.8
Completed    bsb-http-chunked-0.0.0.4
Starting     cereal-0.5.8.1
Building     cabal-doctest-1.0.8
Building     cereal-0.5.8.1
Completed    byteorder-1.0.4
Starting     colour-2.3.5
Building     colour-2.3.5
Completed    cabal-doctest-1.0.8
Starting     data-default-class-0.1.2.0
Building     data-default-class-0.1.2.0
Completed    data-default-class-0.1.2.0
Starting     dec-0.0.3
Building     dec-0.0.3
Completed    dec-0.0.3
Starting     disk-free-space-0.1.0.1
Completed    cereal-0.5.8.1
Starting     dlist-0.8.0.7
Building     disk-free-space-0.1.0.1
Completed    colour-2.3.5
Starting     easy-file-0.2.2
Building     dlist-0.8.0.7
Building     easy-file-0.2.2
Completed    disk-free-space-0.1.0.1
Starting     entropy-0.4.1.5
Completed    dlist-0.8.0.7
Starting     exceptions-0.10.4
Completed    easy-file-0.2.2
Starting     file-embed-0.0.11.1
Building     exceptions-0.10.4
Building     file-embed-0.0.11.1
Building     entropy-0.4.1.5
Completed    file-embed-0.0.11.1
Starting     hashable-1.3.0.0
Building     hashable-1.3.0.0
Completed    entropy-0.4.1.5
Starting     integer-logarithms-1.0.3
Completed    exceptions-0.10.4
Starting     mime-types-0.1.0.9
Building     integer-logarithms-1.0.3
Building     mime-types-0.1.0.9
Completed    integer-logarithms-1.0.3
Starting     network-2.8.0.1
Completed    hashable-1.3.0.0
Starting     network-byte-order-0.1.4.0
Building     network-byte-order-0.1.4.0
Building     network-2.8.0.1
Completed    network-byte-order-0.1.4.0
Starting     network-uri-2.6.2.0
Building     network-uri-2.6.2.0
Completed    mime-types-0.1.0.9
Starting     old-locale-1.0.0.7
Building     old-locale-1.0.0.7
Completed    old-locale-1.0.0.7
Starting     primitive-0.7.0.0
Building     primitive-0.7.0.0
Completed    network-uri-2.6.2.0
Starting     random-1.1
Building     random-1.1
Completed    random-1.1
Starting     readline-1.0.3.0
Completed    network-2.8.0.1
Starting     safe-0.3.18
Building     safe-0.3.18
Failed to install readline-1.0.3.0
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/readline-1.0.3.0-BGjxvDkPdZP8bjKswK1axQ.log ):
cabal: Entering directory '/tmp/cabal-tmp-4209/readline-1.0.3.0'
Warning: readline.cabal:9:3: Tabs used as indentation at 9:3, 10:3, 12:3,
13:3, 15:3, 16:3
Configuring readline-1.0.3.0...
checking for gcc... /usr/bin/gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether /usr/bin/gcc accepts -g... yes
checking for /usr/bin/gcc option to accept ISO C89... none needed
checking for GNUreadline.framework... checking for readline... no
checking for tputs in -lncurses... no
checking for tputs in -ltermcap... yes
checking for readline in -lreadline... no
checking for rl_readline_version... no
configure: error: readline not found, so this package cannot be built
See `config.log' for more details.
cabal: Leaving directory '/tmp/cabal-tmp-4209/readline-1.0.3.0'
Starting     semigroups-0.19.1
Building     semigroups-0.19.1
Completed    basement-0.0.11
Completed    semigroups-0.19.1
Completed    safe-0.3.18
Completed    primitive-0.7.0.0
cabal: Error: some packages failed to install:
keysafe-0.20200214-G7BHqkrLY8OH01tgwPIAPy depends on keysafe-0.20200214 which
failed to install.
readline-1.0.3.0-BGjxvDkPdZP8bjKswK1axQ failed during the configure step. The
exception was:
ExitFailure 1