diff --git a/railties/lib/rails/engine.rb b/railties/lib/rails/engine.rb
index 93504b3b35..86f62dfb40 100644
--- a/railties/lib/rails/engine.rb
+++ b/railties/lib/rails/engine.rb
@@ -553,7 +553,7 @@ module Rails
     #
     # This needs to be an initializer, since it needs to run once
     # per engine and get the engine as a block parameter
-    initializer :set_autoload_paths, before: :bootstrap_hook do |app|
+    initializer :set_autoload_paths, before: :bootstrap_hook do
       ActiveSupport::Dependencies.autoload_paths.unshift(*_all_autoload_paths)
       ActiveSupport::Dependencies.autoload_once_paths.unshift(*_all_autoload_once_paths)
 
diff --git a/railties/lib/rails/test_unit/testing.rake b/railties/lib/rails/test_unit/testing.rake
index 9a3094b1b7..877dd6d254 100644
--- a/railties/lib/rails/test_unit/testing.rake
+++ b/railties/lib/rails/test_unit/testing.rake
@@ -82,7 +82,6 @@ namespace :test do
 
   # Display deprecation message
   task :deprecated do
-    task_name = ARGV.first
     ActiveSupport::Deprecation.warn "`rake #{ARGV.first}` is deprecated with no replacement."
   end