docker_manager と discourse-solved モジュールについて、Discourse 内のアップグレードリンクをクリックしましたが、しばらくすると「Sorry」というメッセージが表示されました。
しかし、Discourse 上ではこれらのモジュールは最新の状態として表示されています。この表示を信じてよいのでしょうか、それとも Linux 上で何かを実行すべきでしょうか（もしそうなら、何をすればよいですか？）
最後のアップデートを実行したところ、以下の出力が得られました。
296913.235374078 Compressing: application-c6861fce930ebb07ae1f5a622066ef6a21c3e3daaa3a134ab5a008ef5c22468a.js
uglifyjs '/var/www/discourse/public/assets/_application-c6861fce930ebb07ae1f5a622066ef6a21c3e3daaa3a134ab5a008ef5c22468a.js' -m -c -o '/var/www/discourse/public/assets/application-c6861fce930ebb07ae1f5a622066ef6a21c3e3daaa3a134ab5a008ef5c22468a.js' --source-map "base='/var/www/discourse/public/assets',root='/assets',url='/assets/application-c6861fce930ebb07ae1f5a622066ef6a21c3e3daaa3a134ab5a008ef5c22468a.js.map'"
Killed
Docker Manager: FAILED TO UPGRADE
#<RuntimeError: RuntimeError>
/var/www/discourse/plugins/docker_manager/lib/docker_manager/upgrader.rb:178:in `run'
/var/www/discourse/plugins/docker_manager/lib/docker_manager/upgrader.rb:86:in `upgrade'
/var/www/discourse/plugins/docker_manager/scripts/docker_manager_upgrade.rb:19:in `block in <main>'
/var/www/discourse/plugins/docker_manager/scripts/docker_manager_upgrade.rb:6:in `fork'
/var/www/discourse/plugins/docker_manager/scripts/docker_manager_upgrade.rb:6:in `<main>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:59:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:59:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/commands/runner/runner_command.rb:42:in `perform'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/command/base.rb:69:in `perform'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/command.rb:46:in `invoke'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/commands.rb:18:in `<main>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/dependencies.rb:324:in `block in require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/dependencies.rb:291:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/dependencies.rb:324:in `require'
bin/rails:17:in `<main>'
Spinning up 3 Unicorn worker(s) that were stopped initially
現在、すべて最新の状態として表示されています。
しかし、Discourse のバージョン表示ではまだアップグレードが必要と示されています。
