Errors

use_warnings

Parallel::ForkManager

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Wed 29 Jun 2016 08:02:06 AM JST
gpg:                using DSA key DF81F07FE1B00B8C
gpg: Can't check signature: No public key