build.cron.xml

<?xml version="1.0" encoding="UTF-8"?>

<project name="drush-cron" default="drush-cron:run">

  <!-- ## Properties -->

  <property name="drush.bin"    value="${project.basedir}/bin/drush" />
  <property name="drush.target" value="" />

  <!-- ## Targets -->

  <target name="drush-cron:run"
          description="Runs the Drupal cron.">
    <exec command="${drush.bin} ${drush.target} cron"
          passthru="true"
          checkreturn="true" />
  </target>

</project>