The package golang-github-nebulouslabs-fastrand 0.0~git20170512.60b6156-1 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/golang-github-nebulouslabs-fastrand -- More information about golang-github-nebulouslabs-fastrand: http://pkg.kali.org/pkg/golang-github-nebulouslabs-fastrand