Errors

use_warnings

Math::BigFloat::Trace, Math::BigInt::Trace, bigint, bignum, bigrat

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 25 Sep 2015 10:50:51 PM JST
gpg:                using RSA key 67263E5D9FAF5EBA
gpg: Can't check signature: No public key