ruby-guard 2.16.1-2 is marked for autoremoval from testing on 2020-04-20 It is affected by these RC bugs: 954724: ruby-guard: FTBFS: ERROR: Test "ruby2.7" failed. Could not find 'method_source' (~> 0.9.0) - did find: [method_source-1.0.0] (Gem::MissingSpecVersionError)