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...
Downloading  mysql-0.1.7
Downloaded   mysql-0.1.7
Starting     mysql-0.1.7
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-5857/mysql-0.1.7'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-5857/mysql-0.1.7/dist/setup/setup.hs, /tmp/cabal-tmp-5857/mysql-0.1.7/dist/setup/Main.o )
Linking /tmp/cabal-tmp-5857/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-5857/mysql-0.1.7'
cabal: Error: some packages failed to install:
mysql-0.1.7-2akJKk9UoN98FN0HKbIl2c failed during the configure step. The
exception was:
ExitFailure 1