This is an auto-filed bug because games-board/natch fails tests. The issue was originally discovered on amd64, but it may be reproducible on other arches as well. If you think that a different summary clarifies the issue better, feel free to change it. Attached build log and emerge --info. NOTE: If you need further logs, feel free to ask.
Created attachment 640696 [details] build.log build log and emerge --info
Created attachment 640698 [details] test-suite.log test-suite.log
tinderbox_musl has reproduced this issue with version 2.4-r1 - Updating summary.