According to the author, cdrtools is now being developed as part of the schilytools suite which has since received numerous updates. The cdrtools project site will apparently no longer receive new versions. Please change the port to use the cdrtools version shipped with schilytools or perhaps merge this port and archivers/star into a new schilytools port. See also #255428.
Fixed by review D30669 as given in bug #256467.
Maintainer timeout. A fix for this issue is given in bug #256467 (DR30669).