Errors

no_files_to_be_skipped

Makefile.PL

use_warnings

Env::C

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Sun 03 May 2015 04:31:00 AM JST
gpg:                using DSA key F82AAF4B3A7D2CEC
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==