use File.binread to pull in the schema cache

activerecord/lib/active_record/railtie.rb

@@ -115,7 +115,7 @@ class Railtie < Rails::Railtie
         if app.config.use_schema_cache_dump
           filename = File.join(app.config.paths["db"].first, "schema_cache.dump")
           if File.file?(filename)
-            cache = Marshal.load(open(filename, 'rb') { |f| f.read })
+            cache = Marshal.load File.binread filename
             if cache.version == ActiveRecord::Migrator.current_version
               ActiveRecord::Base.connection.schema_cache = cache
             else

railties/lib/rails/application/configuration.rb

@@ -106,7 +106,7 @@ def threadsafe!
       # YAML::load.
       def database_configuration
         require 'erb'
-        YAML::load(ERB.new(IO.read(paths["config/database"].first)).result)
+        YAML.load ERB.new(IO.read(paths["config/database"].first)).result
       end
 
       def log_level