I just ran into this, but in my case it was 5.0.37, which wasn’t on the server, but 5.0.33 was. Also I edited /opt/local/var/db/dports/sources/rsync.rsync.darwinports.org_dpupdate_dports/databases/mysql5/Portfile to correct.
By day, I'm a product manager serving a group of fantastic engineers at Square.
By night, I fight crime and solve mysteries with a robot pal of my own creation.
By midday, I like a snack, generally a cookie.
Part of this biography isn't true (hint, I like cookies and engineering, I don't own a robot).