./jnr-jffi-1.2.6-0-g52af1f2.tar.gz already exists, skipping download
Getting https://github.com/jnr/jffi/tarball/1.2.6/jnr-jffi-1.2.6-0-g52af1f2.tar.gz to ./jnr-jffi-1.2.6-0-g52af1f2.tar.gz