chef 12.10.24-1 is marked for autoremoval from testing on 2016-10-24 It is affected by these RC bugs: 837228: chef: FTBFS: ERROR: Test "ruby2.3" failed. 838216: chef: Could not find 'chef-zero' (~> 4.5) - did find: [chef-zero-5.0.0] (Gem::LoadError)