Downloading http://pkg.jenkins-ci.org/debian-stable/binary/InRelease...
Downloading http://pkg.jenkins-ci.org/debian-stable/binary/Release...
Downloading http://pkg.jenkins-ci.org/debian-stable/binary/Release.gpg...
gpgv:  RSA key ID 45F2C3D5
gpgv: Good signature from "Jenkins Project <jenkinsci-board@googlegroups.com>"

Mirror [mirror21]: http://pkg.jenkins-ci.org/debian-stable/ ./binary/ successfully added.
You can run 'aptly mirror update mirror21' to download repository contents.