Consider using alternate workaround from JENKINS-14247.
Merge pull request #32 from sdorra/master

Fix push notification when anonymous users lack read access
Merge branch 'master' of github.com:jenkinsci/mercurial-plugin
Prefer to use an LTS as a baseline.
[maven-release-plugin] prepare release mercurial-1.43
[maven-release-plugin] prepare for next development iteration