AutoPKG JSSImporter on 8.7.3 Error Log

US-MAC-HIRTLE:~ chirtle$ autopkg run Thunderbird.jss -vv
Processing Thunderbird.jss...
MozillaURLProvider
{'Input': {'locale': u'en_US',
           'product_name': u'thunderbird',
           'release': u'latest'}}
MozillaURLProvider: Found URL http://ftp.mozilla.org/pub/mozilla.org//thunderbird/releases/latest/mac/en-US/Thunderbird%2024.2.0.dmg
{'Output': {'url': u'http://ftp.mozilla.org/pub/mozilla.org//thunderbird/releases/latest/mac/en-US/Thunderbird%2024.2.0.dmg'}}
URLDownloader
{'Input': {'filename': u'Thunderbird.dmg',
           'url': u'http://ftp.mozilla.org/pub/mozilla.org//thunderbird/releases/latest/mac/en-US/Thunderbird%2024.2.0.dmg'}}
URLDownloader: Item at URL is unchanged.
URLDownloader: Using existing /Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/downloads/Thunderbird.dmg
{'Output': {'download_changed': False,
            'etag': '',
            'last_modified': '',
            'pathname': u'/Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/downloads/Thunderbird.dmg'}}
EndOfCheckPhase
{'Input': {}}
{'Output': {}}
AppDmgVersioner
{'Input': {'dmg_path': u'/Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/downloads/Thunderbird.dmg'}}
AppDmgVersioner: Mounted disk image /Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/downloads/Thunderbird.dmg
AppDmgVersioner: BundleID: org.mozilla.thunderbird
AppDmgVersioner: Version: 24.2.0
{'Output': {'app_name': u'Thunderbird.app',
            'bundleid': u'org.mozilla.thunderbird',
            'version': u'24.2.0'}}
PkgRootCreator
{'Input': {'pkgdirs': {
    Applications = 0775;
},
           'pkgroot': u'/Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/Thunderbird'}}
PkgRootCreator: Created /Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/Thunderbird
PkgRootCreator: Creating Applications
PkgRootCreator: Created /Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/Thunderbird/Applications
{'Output': {}}
Copier
{'Input': {'destination_path': u'/Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/Thunderbird/Applications/Thunderbird.app',
           'source_path': u'/Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/downloads/Thunderbird.dmg/Thunderbird.app'}}
Copier: Mounted disk image /Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/downloads/Thunderbird.dmg
Copier: Copied /private/tmp/dmg.3olXr1/Thunderbird.app to /Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/Thunderbird/Applications/Thunderbird.app
{'Output': {}}
PkgCreator
{'Input': {'pkg_request': {
    chown =     (
                {
            group = admin;
            path = Applications;
            user = root;
        }
    );
    id = "org.mozilla.thunderbird.pkg";
    options = "purge_ds_store";
    pkgdir = "/Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird";
}}}
PkgCreator: Connecting
PkgCreator: Sending packaging request
PkgCreator: Disconnecting
{'Output': {'pkg_path': '/Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/Thunderbird-24.2.0.pkg'}}
JSSImporter
{'Input': {'API_PASSWORD': u'MyPass',
           'API_USERNAME': u'svc_apiwrite',
           'JSS_REPO': u'/Volumes/staging$/Packages',
           'JSS_URL': u'https://jss.myorg.com:8443',
           'category': u'Thunderbird',
           'pkg_path': '/Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/Thunderbird-24.2.0.pkg',
           'selfserve_policy': u'SelfServeLatest_Thunderbird',
           'smart_group': u'LessThanMostRecent_Thunderbird',
           'version': u'24.2.0'}}

Trying to reach JSS and fetch all categories at URL https://jss.myorg.com:8443
Error parsing XML from checkItem results.
Failed.
Receipt written to /Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/receipts/Thunderbird-receipt-20140108-152433.plist

The following recipes failed:
    Thunderbird.jss
        Error in com.github.autopkg.jss.Thunderbird: Processor: JSSImporter: Error: Error parsing XML from checkItem results.

The following packages were built:
    Identifier               Version          Pkg path
    ----------               -------          --------
    org.mozilla.thunderbird.pkg 24.2.0           /Users/chirtle/Library/AutoPkg/Cache/com.github.autopkg.jss.Thunderbird/Thunderbird-24.2.0.pkg