No release history causes fatal error

Trying to download userpoints_contrib in Drupal 7 causes an unrecoverable error:

$ drush dl userpoints_contrib
No release history available for userpoints_contrib    [error]
7.x.
PHP Fatal error:  Call to a member function xpath() on a non-object in /home/mikechelen/drush/commands/pm/pm.drush.inc on line 1967
Drush command terminated abnormally due to an          [error]
unrecoverable error.
Error: Call to a member function xpath() on a
non-object in
/home/mikechelen/drush/commands/pm/pm.drush.inc, line
1967

Full output of: drush -vd dl userpoints_contrib

Bootstrap to phase 0. [0.04 sec, 1.46 MB]                            [bootstrap]
Drush bootstrap phase : _drush_bootstrap_drush() [0.04 sec, 1.6 MB]  [bootstrap]
Drush bootstrap phase : _drush_bootstrap_drupal_root() [bootstrap]
[0.06 sec, 3.35 MB]
Initialized Drupal 7.0-dev root directory at              [notice]
/home/mikechelen/drupal-7.x-dev [0.08 sec, 4.31 MB]
Drush bootstrap phase : _drush_bootstrap_drupal_site() [bootstrap]
[0.08 sec, 4.31 MB]
Initialized Drupal site test.mikechelen.com at            [notice]
sites/test.mikechelen.com [0.08 sec, 4.31 MB]
Drush bootstrap phase :                                [bootstrap]
_drush_bootstrap_drupal_configuration() [0.08 sec, 4.31
MB]
Drush bootstrap phase :                                [bootstrap]
_drush_bootstrap_drupal_database() [0.09 sec, 4.32 MB]
Successfully connected to the Drupal database. [0.09   [bootstrap]
sec, 4.32 MB]
Drush bootstrap phase : _drush_bootstrap_drupal_full() [bootstrap]
[0.09 sec, 4.79 MB]
Drush bootstrap phase : _drush_bootstrap_drupal_login()[bootstrap]
[0.31 sec, 15.23 MB]
Successfully logged into Drupal as Anonymous (uid=0)   [bootstrap]
[0.31 sec, 15.4 MB]
Found command: pm-download (commandfile=pm) [0.31 sec, [bootstrap]
15.4 MB]
Initializing drush commandfile: user [0.31 sec, 15.4   [bootstrap]
MB]
Downloading release history from                          [notice]
http://updates.drupal.org/release-history/userpoints_contrib/7.x
[0.31 sec, 15.43 MB]
No release history available for userpoints_contrib    [31;40m[1m[error][0m
7.x. [0.64 sec, 15.44 MB]
Drush command terminated abnormally due to an          [31;40m[1m[error][0m
unrecoverable error.
Error: Call to a member function xpath() on a
non-object in
/home/mikechelen/drush/commands/pm/pm.drush.inc, line
1967 [0.64 sec, 15.44 MB]
PHP Fatal error:  Call to a member function xpath() on a non-object in /home/mikechelen/drush/commands/pm/pm.drush.inc on line 1967