While making new cask, rubocop-cask install fails

[CryoRenegade]

General troubleshooting steps

• I have retried my command with --force and the issue is still present.
• I have checked the instructions for reporting bugs.
  • None of the templates was appropriate for my issue, or I’m not sure.
• I ran brew update-reset && brew update and retried my command.
• I ran brew doctor, fixed as many issues as possible and retried my command.
• I understand that if I ignore these instructions, my issue may be closed without review.

Description of issue

While making a new cask, brew tries to install the rubocop-cask and fails.

Command that failed

brew cask style Casks/jgrasp-beta.rb [--fix]

Output of command with --force --verbose --debug

brew cask style Casks/jgrasp-beta.rb [--fix] --force --verbose --debug
Error: invalid option: --force
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/options.rb:60:in `process_arguments'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/abstract_command.rb:40:in `initialize'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/abstract_command.rb:33:in `new'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/abstract_command.rb:33:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:93:in `run_command'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:157:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:122:in `run'
/usr/local/Homebrew/Library/Homebrew/cmd/cask.rb:7:in `cask'
/usr/local/Homebrew/Library/Homebrew/brew.rb:100:in `<main>'
Error: Kernel.exit
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:162:in `exit'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:162:in `rescue in run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:145:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:122:in `run'
/usr/local/Homebrew/Library/Homebrew/cmd/cask.rb:7:in `cask'
/usr/local/Homebrew/Library/Homebrew/brew.rb:100:in `<main>'

Output of brew cask doctor

brew cask doctor
==> Homebrew-Cask Version
Homebrew-Cask 1.6.14
Homebrew/homebrew-cask (git revision 90e8c; last commit 2018-07-13)
==> macOS
10.13.6
==> SIP
Enabled
==> Java
10.0.1
==> Homebrew-Cask Install Location
<NONE>
==> Homebrew-Cask Staging Location
/usr/local/Caskroom
==> Homebrew-Cask Cached Downloads
~/Library/Caches/Homebrew/Cask (18 files, 2.9GB)
==> Homebrew-Cask Taps:
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask (3996 casks)
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask-versions (185 casks)
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask-eid (11 casks)
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask-fonts (1163 casks)
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask-drivers (149 casks)
==> Contents of $LOAD_PATH
/usr/local/Homebrew/Library/Homebrew
/usr/local/Homebrew/Library/Homebrew/cask/lib
/Library/Ruby/Gems/2.3.0/gems/did_you_mean-1.0.0/lib
/Library/Ruby/Site/2.3.0
/Library/Ruby/Site/2.3.0/x86_64-darwin17
/Library/Ruby/Site/2.3.0/universal-darwin17
/Library/Ruby/Site
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/vendor_ruby/2.3.0
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/vendor_ruby/2.3.0/x86_64-darwin17
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/vendor_ruby/2.3.0/universal-darwin17
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/vendor_ruby
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/x86_64-darwin17
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/universal-darwin17
==> Environment Variables
LC_ALL="en_US.UTF-8"
PATH="/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/Homebrew/Library/Homebrew/shims/scm"
SHELL="/bin/bash"

Output of brew tap

brew tap
homebrew/cask
homebrew/cask-drivers
homebrew/cask-eid
homebrew/cask-fonts
homebrew/cask-versions
homebrew/core
vitorgalvao/tiny-scripts

[commitay]

Please post the output of brew cask style without --force

[CryoRenegade]

brew cask style Casks/jgrasp-beta.rb [--fix] --verbose --debug
==> Installing or updating 'rubocop-cask' gem
Error: installing into parent path ext/jaro_winkler/adj_matrix.c of /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.3.0/gems/jaro_winkler-1.5.1 is not allowed
Follow the instructions here:
  https://github.com/Homebrew/homebrew-cask#reporting-bugs
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:439:in `block in mkdir_p_safe'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:433:in `each'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:433:in `reduce'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:433:in `mkdir_p_safe'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:379:in `block (2 levels) in extract_tar_gz'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package/tar_reader.rb:65:in `each'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:363:in `block in extract_tar_gz'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:472:in `block in open_tar_gz'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:469:in `wrap'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:469:in `open_tar_gz'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:362:in `extract_tar_gz'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:343:in `block (2 levels) in extract_files'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package/tar_reader.rb:65:in `each'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:340:in `block in extract_files'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package/file_source.rb:30:in `open'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package/file_source.rb:30:in `with_read_io'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/package.rb:337:in `extract_files'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/installer.rb:773:in `extract_files'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/installer.rb:295:in `install'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/resolver/specification.rb:97:in `install'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/request_set.rb:166:in `block in install'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/request_set.rb:156:in `each'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/request_set.rb:156:in `install'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/commands/install_command.rb:250:in `install_gem'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/commands/install_command.rb:300:in `block in install_gems'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/commands/install_command.rb:296:in `each'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/commands/install_command.rb:296:in `install_gems'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/commands/install_command.rb:203:in `execute'
/usr/local/Homebrew/Library/Homebrew/utils.rb:229:in `install_gem!'
/usr/local/Homebrew/Library/Homebrew/utils.rb:237:in `install_gem_setup_path!'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/style.rb:21:in `block in install_rubocop'
/usr/local/Homebrew/Library/Homebrew/utils.rb:405:in `capture_stderr'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/style.rb:19:in `install_rubocop'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/style.rb:11:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/abstract_command.rb:33:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:93:in `run_command'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:157:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:122:in `run'
/usr/local/Homebrew/Library/Homebrew/cmd/cask.rb:7:in `cask'
/usr/local/Homebrew/Library/Homebrew/brew.rb:100:in `<main>'
Error: Kernel.exit
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:168:in `exit'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:168:in `rescue in run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:145:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:122:in `run'
/usr/local/Homebrew/Library/Homebrew/cmd/cask.rb:7:in `cask'
/usr/local/Homebrew/Library/Homebrew/brew.rb:100:in `<main>'

[commitay]

Will be fixed by Homebrew/brew#4461

[CryoRenegade]

👍

[commitay]

Should be fixed now if you brew update

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