Problem with installing Jeykll

[peterlobster]

I'm trying to install Jekyll and I'm getting this error. I don't know if #50 might be related but seems similar in some aspects.

$brew gem install jekyll --homebrew-ruby                                                                                   
==> Fetching jekyll from gem source
Error: An exception occurred within a child process:
  Errno::ENOENT: No such file or directory @ rb_sysopen - /Users/TheLobster/Library/Caches/Homebrew/jekyll-3.8.5.gem

$env HOMEBREW_DEBUG=1 brew gem install jekyll                                                                                   
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FromPathLoader): loading /var/folders/sv/cmvmg3h10bb03_7qqfr2m85w0000gn/T/gem-jekyll.rb
/usr/local/Homebrew/Library/Homebrew/build.rb (Formulary::FromPathLoader): loading /var/folders/sv/cmvmg3h10bb03_7qqfr2m85w0000gn/T/gem-jekyll.rb
==> Fetching jekyll from gem source
Error: An exception occurred within a child process:
  Errno::ENOENT: No such file or directory @ rb_sysopen - /Users/TheLobster/Library/Caches/Homebrew/jekyll-3.8.5.gem
/usr/local/Homebrew/Library/Homebrew/unpack_strategy.rb:11:in `binread'
/usr/local/Homebrew/Library/Homebrew/unpack_strategy.rb:11:in `binread'
/usr/local/Homebrew/Library/Homebrew/unpack_strategy.rb:11:in `magic_number'
/usr/local/Homebrew/Library/Homebrew/unpack_strategy/fossil.rb:12:in `can_extract?'
/usr/local/Homebrew/Library/Homebrew/unpack_strategy.rb:97:in `block in detect'
/usr/local/Homebrew/Library/Homebrew/unpack_strategy.rb:97:in `each'
/usr/local/Homebrew/Library/Homebrew/unpack_strategy.rb:97:in `find'
/usr/local/Homebrew/Library/Homebrew/unpack_strategy.rb:97:in `detect'
/usr/local/Homebrew/Library/Homebrew/download_strategy.rb:53:in `stage'
/usr/local/Homebrew/Library/Homebrew/resource.rb:99:in `block in unpack'
/usr/local/Homebrew/Library/Homebrew/resource.rb:173:in `block in mktemp'
/usr/local/Homebrew/Library/Homebrew/mktemp.rb:55:in `block in run'
/usr/local/Homebrew/Library/Homebrew/mktemp.rb:55:in `chdir'
/usr/local/Homebrew/Library/Homebrew/mktemp.rb:55:in `run'
/usr/local/Homebrew/Library/Homebrew/resource.rb:172:in `mktemp'
/usr/local/Homebrew/Library/Homebrew/resource.rb:98:in `unpack'
/usr/local/Homebrew/Library/Homebrew/resource.rb:75:in `stage'
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/forwardable.rb:202:in `stage'
/usr/local/Homebrew/Library/Homebrew/formula.rb:2062:in `stage'
/usr/local/Homebrew/Library/Homebrew/formula.rb:1131:in `brew'
/usr/local/Homebrew/Library/Homebrew/build.rb:114:in `block in install'
/usr/local/Homebrew/Library/Homebrew/utils.rb:523:in `with_env'
/usr/local/Homebrew/Library/Homebrew/build.rb:111:in `install'
/usr/local/Homebrew/Library/Homebrew/build.rb:192:in `<main>'

[simonweil]

Happening to me to with neovim gem.

$ brew gem install neovim
==> Fetching neovim from gem source
Error: An exception occurred within a child process:
  Errno::ENOENT: No such file or directory @ rb_sysopen - /Users/username/Library/Caches/Homebrew/neovim-0.8.0.gem

Any update in this?