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

NUFFIN / KiokuDB-Cmd-0.03 / Changes 
0.03
    - Support the new KiokuDB::Backend::Role::GC

0.02
    - Refactor to use Role::Verbosity

0.01
    - Split up from main KiokuDB distribution (version 0.30)