This will crash macruby inconsistently with "incorrect checksum for freed object - object was probably modified after being freed."

nokogiri_test.rb

require "rubygems"
require "nokogiri"


puts "starting"

html=<<-EOS
<div class="result">
  <div>
    <h1>
      <span class="type">link</span>
      <a href="http://yahoo.com">yahoo</a>
    </h1>

    <h3>title text</h3>

    <p>paragraph text</p>

    <p class="attribution">
      attribution text
    </p>
  </div>
</div>
EOS

doc = Nokogiri::HTML(html)
puts "Nokogiri parsed the html"

10.times do |t|
  print "Run ##{t}: "
  results = doc.css("div.result")

  results.each do |result|
    print"OK"
    a=result.at_css("a")
    p=result.at_css("p")
    div=result.at_css("div")
    attribution=result.at_css "p.attribution"
  end
  puts ""
end