exhibit a bug showing that the RestClient::RawResponse#body method doesn't exist in v2.0.2. This was fixed in v2.1.0.

rest-client-test.rb

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'
  # gem 'rest-client', '= 2.1.0'
  gem 'rest-client', '= 2.0.2'
end

def run
  puts "The rest-client gem is at version #{RestClient::VERSION}"

  url = 'https://github.com/404'

  log_404(url: url, raw: false)
  log_404(url: url, raw: true)
end

def log_404(url:, raw:)
  options = {
    :method => :get,
    :url => url,
    :raw_response => raw
  }

  begin
    RestClient::Request.execute options
  rescue StandardError => e
    puts "Error Class: #{e.class}  Error Body:"
    puts e.http_body if e.respond_to?(:http_body)
  end
end

run