hostmaster-migrate doesn't fail if drush make fails

Here's a good one:

sh-3.2$ /var/hostmaster/drush/drush.php hostmaster-migrate hostmaster.koumbit.net /var/hostmaster/hostmaster-HEAD --debug
Drush bootstrap phase : _drush_bootstrap_drupal_root() [0.08 sec, 4.4[bootstrap]
MB]
Loading drushrc "/var/hostmaster/drupal-6.14-1/drushrc.php" into     [bootstrap]
"drupal" scope. [0.08 sec, 4.41 MB]
Initialized Drupal 6.14 root directory at                               [notice]
/var/hostmaster/drupal-6.14-1 [0.11 sec, 6.16 MB]
Found command: hostmaster-migrate [0.12 sec, 6.27 MB]                [bootstrap]
Initializing drush commandfile: drush_make [0.12 sec, 6.27 MB]       [bootstrap]
Initializing drush commandfile: drush_make_d_o [0.12 sec, 6.27 MB]   [bootstrap]
Initializing drush commandfile: provision_apache [0.12 sec, 6.27 MB] [bootstrap]
Initializing drush commandfile: provision_drupal [0.12 sec, 6.27 MB] [bootstrap]
Initializing drush commandfile: provision_mysql [0.12 sec, 6.27 MB]  [bootstrap]
Including /var/hostmaster/.drush/provision/migrate.hostmaster.inc    [bootstrap]
[0.12 sec, 6.27 MB]
The platform path you specified does not exist yet.
Downloading the hostmaster front end. (this might take a few minutes)
Undefined index:  root [0.13 sec, 6.29 MB]                              [notice]
Running:  /var/hostmaster/drush/drush.php                              [command]
--root='/var/hostmaster/drupal-6.14-1' make
'/var/hostmaster/.drush/provision/aegir.make'
'/var/hostmaster/hostmaster-HEAD' --backend [0.13 sec, 6.29 MB]
Drush bootstrap phase : _drush_bootstrap_drush() [0.39 sec, 6.3 MB]  [bootstrap]
Found command: make [0.39 sec, 6.3 MB]                               [bootstrap]
Initializing drush commandfile: drush_make [0.39 sec, 6.3 MB]        [bootstrap]
Initializing drush commandfile: drush_make_d_o [0.39 sec, 6.3 MB]    [bootstrap]
Initializing drush commandfile: provision_apache [0.39 sec, 6.3 MB]  [bootstrap]
Initializing drush commandfile: provision_drupal [0.4 sec, 6.3 MB]   [bootstrap]
Initializing drush commandfile: provision_mysql [0.4 sec, 6.3 MB]    [bootstrap]
Drush version 2.1 or higher is required for drush make to work. [0.4 [error]
sec, 6.3 MB]
An error occurred at function : drush_drush_make_make [0.4 sec, 6.3  [error]
MB]
Command dispatch complete [0.4 sec, 6.3 MB]                             [notice]
Peak memory usage was 4.49 MB [0.4 sec, 6.3 MB]                         [memory]
The hostmaster front end could not be downloaded, exiting. [0.4 sec, [error]
6.3 MB]
Running:  /var/hostmaster/drush/drush.php                              [command]
...

Then hostmaster-migrate goes on running verify and all the rest. Error checking anyone?