While it's programmed in my brain to use rake commands for migrations and tasks, I find it very useful to use rails command instead of rake which is introduced since Rails 5 to unify the use of rails commands. Using rake commands in Rails projects normally cause errors because of the bundler version:

$ rake jobs:workoff
rake aborted!
Gem::LoadError: You have already activated rake 12.3.1, but your Gemfile requires rake 12.3.0. Prepending `bundle exec` to your command may solve this.
/Users/waiyanyoon/Documents/workspace/project/config/boot.rb:3:in `<top (required)>'
/Users/waiyanyoon/Documents/workspace/project/config/application.rb:1:in `require_relative'
/Users/waiyanyoon/Documents/workspace/project/config/application.rb:1:in `<top (required)>'
/Users/waiyanyoon/Documents/workspace/project/Rakefile:4:in `<top (required)>'

Caused by:
LoadError: cannot load such file -- bundler/setup
/Users/waiyanyoon/Documents/workspace/project/config/boot.rb:3:in `<top (required)>'
/Users/waiyanyoon/Documents/workspace/project/config/application.rb:1:in `require_relative'
/Users/waiyanyoon/Documents/workspace/project/config/application.rb:1:in `<top (required)>'
/Users/waiyanyoon/Documents/workspace/project/Rakefile:4:in `<top (required)>'
(See full trace by running task with --trace)

So now I replaced my rake commands to use rails instead for all my commands:

$ rails jobs:workoff

Now I can easily prevent the error above.