Errors

use_warnings
Opcodes
valid_signature
Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Sat 06 Apr 2013 05:35:28 AM JST
gpg:                using DSA key 9A6D92628FFDC942
gpg: Can't check signature: No public key