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     base16-bytestring-0.1.1.6
Starting     auto-update-0.1.6
Starting     base-orphans-0.8.1
Starting     base-compat-0.10.5
Building     base16-bytestring-0.1.1.6
Building     auto-update-0.1.6
Building     base-orphans-0.8.1
Building     base-compat-0.10.5
Completed    base-orphans-0.8.1
Starting     base64-bytestring-1.0.0.2
Completed    base16-bytestring-0.1.1.6
Starting     blaze-builder-0.4.1.0
Completed    auto-update-0.1.6
Starting     cabal-doctest-1.0.6
Building     base64-bytestring-1.0.0.2
Building     blaze-builder-0.4.1.0
Building     cabal-doctest-1.0.6
Completed    base64-bytestring-1.0.0.2
Starting     data-default-class-0.1.2.0
Building     data-default-class-0.1.2.0
Completed    cabal-doctest-1.0.6
Starting     dlist-0.8.0.7
Completed    blaze-builder-0.4.1.0
Starting     easy-file-0.2.2
Building     dlist-0.8.0.7
Building     easy-file-0.2.2
Completed    base-compat-0.10.5
Starting     hashable-1.3.0.0
Completed    data-default-class-0.1.2.0
Starting     integer-logarithms-1.0.3
Building     hashable-1.3.0.0
Building     integer-logarithms-1.0.3
Completed    dlist-0.8.0.7
Starting     monad-loops-0.4.3
Completed    easy-file-0.2.2
Starting     mysql-0.1.7
Building     monad-loops-0.4.3
Completed    integer-logarithms-1.0.3
Starting     network-3.1.0.1
Completed    hashable-1.3.0.0
Starting     old-locale-1.0.0.7
Completed    monad-loops-0.4.3
Starting     path-pieces-0.2.1
Building     old-locale-1.0.0.7
Failed to install mysql-0.1.7
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/mysql-0.1.7-2akJKk9UoN98FN0HKbIl2c.log ):
cabal: Entering directory '/tmp/cabal-tmp-12567/mysql-0.1.7'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-12567/mysql-0.1.7/dist/setup/setup.hs, /tmp/cabal-tmp-12567/mysql-0.1.7/dist/setup/Main.o )
Linking /tmp/cabal-tmp-12567/mysql-0.1.7/dist/setup/setup ...
Configuring mysql-0.1.7...
setup: The program 'mysql_config' is required but it could not be found

cabal: Leaving directory '/tmp/cabal-tmp-12567/mysql-0.1.7'
Starting     pcre-light-0.4.0.4
Building     path-pieces-0.2.1
Building     pcre-light-0.4.0.4
Building     network-3.1.0.1
Completed    old-locale-1.0.0.7
Completed    path-pieces-0.2.1
Completed    pcre-light-0.4.0.4
Completed    network-3.1.0.1
cabal: Error: some packages failed to install:
mysql-0.1.7-2akJKk9UoN98FN0HKbIl2c failed during the configure step. The
exception was:
ExitFailure 1
mysql-simple-0.4.5-CW885KCRNSpAa7rDqdPCvq depends on mysql-simple-0.4.5 which
failed to install.
persistent-mysql-2.10.1-9J4tSj9OhgpKU5JLO7FFxT depends on
persistent-mysql-2.10.1 which failed to install.