extend jenkins group the standard way
update nixpkgs to bcff45ae081c91c580bf17d056e9552904b70f64
try the interface of jenkins-slave enables user
update nixpkgs to 0b5dbe48234fd7b0e3f50ed530ff4690b4e12d0d
use jenkinsSlave not jenkins-slave
update nixpkgs to e356922b2dc331d395a46e82dd8c2d280d563f1a