Problems while searching for a new upstream version

package:
golang-github-willfaught-gockle
severity:
high
created:
2018-10-14
last updated:
2019-08-25

uscan had problems while searching for a new upstream version:
In debian/watch no matching files for watch line
  https://github.com/willfaught/gockle/tags .*/v?(\d\S*)\.tar\.gz