undefined method `cask' for main:Object

[hollingberry]

$ brew cask info sublime-text
Error: undefined method `cask' for main:Object
Please report this bug:
    https://github.com/caskroom/homebrew-cask/issues
/usr/local/Library/Taps/caskroom/homebrew-cask/Casks/sublime-text.rb:1:in `<top (required)>'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/usr/local/Cellar/brew-cask/0.35.0/rubylib/cask/source/path.rb:13:in `load'
/usr/local/Cellar/brew-cask/0.35.0/rubylib/cask/source/tapped.rb:24:in `load'
/usr/local/Cellar/brew-cask/0.35.0/rubylib/cask.rb:118:in `load'
/usr/local/Cellar/brew-cask/0.35.0/rubylib/cask/cli/info.rb:6:in `block in run'
/usr/local/Cellar/brew-cask/0.35.0/rubylib/cask/cli/info.rb:4:in `each'
/usr/local/Cellar/brew-cask/0.35.0/rubylib/cask/cli/info.rb:4:in `run'
/usr/local/Cellar/brew-cask/0.35.0/rubylib/cask/cli.rb:57:in `run_command'
/usr/local/Cellar/brew-cask/0.35.0/rubylib/cask/cli.rb:72:in `process'
/usr/local/bin/brew-cask.rb:6:in `<top (required)>'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/usr/local/Library/brew.rb:59:in `require?'
/usr/local/Library/brew.rb:142:in `<main>'

[hollingberry]

Nevermind, I hadn't seen #8233. Running brew update && brew upgrade brew-cask && brew cleanup && brew cask cleanup fixed the issue.