rails6アップデート時のrails app:update(devise)エラー,ActionDispatch::Routing::RouteSet:Class

# rails6にあげるときこんなエラーが出た

```rb
> % rails app:update
rails aborted!
NoMethodError: undefined method `alias_method_chain' for ActionDispatch::Routing::RouteSet:Class
Did you mean?  alias_method
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/devise-1.5.4/lib/devise/rails/routes.rb:14:in `<class:RouteSet>'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/devise-1.5.4/lib/devise/rails/routes.rb:2:in `<module:Routing>'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/devise-1.5.4/lib/devise/rails/routes.rb:1:in `<main>'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `block in require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:in `load_dependency'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/devise-1.5.4/lib/devise/rails.rb:1:in `<main>'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `block in require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:in `load_dependency'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/devise-1.5.4/lib/devise.rb:445:in `<main>'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/jin/workspace/hoge/fuga/piyo/config/application.rb:20:in `<main>'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `block in require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:in `load_dependency'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:48:in `require_relative'
/Users/jin/workspace/hoge/fuga/piyo/Rakefile:6:in `<main>'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:54:in `load'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:54:in `load'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:319:in `block in load'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:in `load_dependency'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:319:in `load'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/railties-6.0.0/lib/rails/commands/rake/rake_command.rb:22:in `block in perform'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/railties-6.0.0/lib/rails/commands/rake/rake_command.rb:20:in `perform'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/railties-6.0.0/lib/rails/command.rb:48:in `invoke'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/railties-6.0.0/lib/rails/commands.rb:18:in `<main>'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `block in require'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:in `load_dependency'
/Users/jin/workspace/hoge/fuga/piyo/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `require'
bin/rails:6:in `<main>'
(See full trace by running task with --trace)
```

Gemfileを以下に設定すると成功する

``` rb
gem 'devise', git: 'https://github.com/plataformatec/devise'
```

## 参考

https://github.com/plataformatec/devise/issues/5119