Errors

use_warnings
Term::Caca::FFI
valid_signature
Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Fri 28 Jun 2019 02:35:35 AM JST
gpg:                using DSA key DF81F07FE1B00B8C
gpg: Can't check signature: No public key