Where is my c:result?

using:  calabash 0.6.0

Several steps, including p:compare, wrap their results in a c:result
document.  How do I access that?  It doesn¹t seem to automatically pop out
on the default result port.   And I can¹t find any mention of how to access
it in the spec.  

Appreciate any pointers!

James Garriss
http://garriss.blogspot.com

PS:  here¹s my pipeline:

<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" name="main">
    <p:input port="source" primary="true">
        <p:document href="Bookstore.xml"/>
    </p:input>
    <p:input port="alternate">
        <p:document href="BookStoreDupe.xml"/>
    </p:input>
    <p:input port="|result"/>
    <p:output port="result"/>
    <p:compare fail-if-not-equal="true">
        <p:input port="source">
            <p:pipe step="main" port="source"/>
        </p:input>
        <p:input port="alternate">
            <p:pipe step="main" port="alternate"/>
        </p:input>
    </p:compare>
</p:declare-step>