Drush site-install errors

I have an Aegir setup where I install multiple sites from the administration, and do various tasks that in the backend call Drush. I have Apachesolr and Apachesolr Views in my build. When Apachesolr Views is installed, it calls the

$solr_fields = $solr->getFields(0);

to build the available views handlers. Unfortunately, at this point the solr core is not configured properly, and there are two watchdog errors, which are also handled as errors by Drush:

WD Apache Solr: HTTP Status: 0; Message: Request failed: Connection refused; Response: ; Request: Unknown; Caller: apachesolr_views_views_data() (line 43 of                                                                          [error]
.../sites/all/modules/contrib/apachesolr_views/apachesolr_views.views.inc)
WD Apache Solr Views: HTTP 0; Request failed: Connection refused                                                                                                                                                                      [error]
WD Apache Solr: HTTP Status: 0; Message: Request failed: Connection refused; Response: ; Request: Unknown; 

One is from apachesolr_views_views_data(), the other from DrupalApacheSolrService::checkResponse().
The problem is that drush hooks itself on watchdog and outputs error on WATCHDOG_ERROR. Then the Aegir task fails to complete.