buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c echo \"gem: --no-document\" > /etc/gemrc && gem install jekyll minitest `# So that Bundler needn't install` pygments.rb specific_install && gem specific_install https://github.com/cs50/jekyll-theme-cs50 develop && gem cleanup" did not complete successfully: exit code: 1