There is an ongoing outage on the primary CPAN mirror. It is possible to work around the issue by using MetaCPAN as a mirror.

CONTRIBUTING

If you want to contribute to the distribution, fork its repository on GitHub. Note that the maxmind-db directory is a git submodule. You can obtain it by adding --recursive to the git clone command, or by doing a

git submodule update --init --recursive

in an already cloned repo.