I have noticed a pattern than when I generate markdown from org-mode and have the text 'language' selected for highlighting push, this causes github to hang like crazy. I don't think I'm crazy in thinking it might be me. I push frequently to my blog and am starting to notice a correlation.

I export this into the below markdown.

    #+BEGIN_SRC text -n :f "translate-shell -s fr -t en" :async :results verbatim code
      I learned some French so that I can talk to
      you during tennis. I hope I know enough so you
      will not get bored.
    #+END_SRC

When I get a page build failure it's usually my fault for creating .

This is the markdown which was pushed to my blog. The 'Page Build failure' messages take a long time to arrive to my inbox and I can see that the page build is hanging.

    {{< highlight text "linenos=table, linenostart=1" >}}
    I learned some French so that I can talk to
    you during tennis. I hope I know enough so you
    will not get bored.
    {{< /highlight >}}