Use of uninitialized value in concatenation (.) or string at /usr/share/perl5/Devscripts/Uscan/WatchLine.pm line 868.
uscan warn: In debian/watch no matching hrefs for version 1.6.3 in watch line
https://github.com/brettwooldridge/SparseBitSet/tags .*/(?:.*?)([\d\.]+)\.tar\.gz
Looking for upstream 1.6.3 in upstream branch <RemoteGitBranch('https://github.com/brettwooldridge/SparseBitSet.git/', 'master')>.
No upstream upstream-revision format specified, trying tag:1.6.3
No upstream upstream-revision format specified, trying tag:sparsebitset-1.6.3
No upstream upstream-revision format specified, trying tag:v1.6.3
No upstream upstream-revision format specified, trying tag:v.1.6.3
No upstream upstream-revision format specified, trying tag:release-1.6.3
No upstream upstream-revision format specified, trying tag:1_6_3_release
No upstream upstream-revision format specified, trying tag:1_6_3
No upstream upstream-revision format specified, trying tag:version-1.6.3
No upstream upstream-revision format specified, trying tag:sparsebitset-1_6_3-release
No upstream upstream-revision format specified, trying tag:sparsebitset-v1.6.3
brz: ERROR: Unable to find the needed upstream tarball for package sparsebitset, version 1.6.3.