Errors

use_warnings

RT::Authen::ExternalAuth, RT::Authen::ExternalAuth::DBI, RT::Authen::ExternalAuth::DBI::Cookie, RT::Authen::ExternalAuth::LDAP

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 16 Jun 2017 03:42:55 AM JST
gpg:                using RSA key 3756E25431440520
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==