Ubuntu 12.04 LTS, Ansible version 1.5 (devel 5cbe24913f).
Ansible error when copying some files to the remote machine:
warning: md5sum command failed unusually, please report this to the list so it can be fixed
command: [u’(/usr/bin/md5sum /var/www/wordpress/wordpress-3.8.1/wp-admin/admin-ajax.php 2>/dev/null)‘, u’(/sbin/md5sum -q /var/www/wordpress/wordpress-3.8.1/wp-admin/admin-ajax.php 2>/dev/null)‘, u’(/usr/bin/digest -a md5 /var/www/wordpress/wordpress-3.8.1/wp-admin/admin-ajax.php 2>/dev/null)‘, u’(/sbin/md5 -q /var/www/wordpress/wordpress-3.8.1/wp-admin/admin-ajax.php 2>/dev/null)‘, u’(/usr/bin/md5 -n /var/www/wordpress/wordpress-3.8.1/wp-admin/admin-ajax.php 2>/dev/null)‘, u’(/bin/md5 -q /var/www/wordpress/wordpress-3.8.1/wp-admin/admin-ajax.php 2>/dev/null)‘, u’(/usr/bin/csum -h MD5 /var/www/wordpress/wordpress-3.8.1/wp-admin/admin-ajax.php 2>/dev/null)']