This package uses a deprecated Go eclass. It must be migrated to go-module.eclass. Fixing this does not require a revbump as it'll already be successfully installed. $ pkgcheck scan -k DeprecatedEclass app-metrics/prom2json app-metrics/prom2json DeprecatedEclass: version 0.1.0_p20170523: uses deprecated eclass: golang-build (migrate to go-module.eclass) DeprecatedEclass: version 0.1.0_p20170523: uses deprecated eclass: golang-vcs-snapshot (migrate to go-module.eclass)