The package golang-github-opencontainers-specs 1.0.0~rc2+git20160926.38.1c7c27d-1 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/golang-github-opencontainers-specs -- More information about golang-github-opencontainers-specs: http://pkg.kali.org/pkg/golang-github-opencontainers-specs