$ /usr/bin/mergerepo_c --koji -b /mnt/koji/repos/dist-an7-build/14820/x86_64/blocklist -a x86_64 -o /tmp/koji/tasks/6990/96990/repo --arch-expand -g /mnt/koji/repos/dist-an7-build/14820/groups/comps.xml -r file:///tmp/koji/tasks/6990/96990/repo_14820_premerge/ -r https://mirrors.aliyun.com/centos/7.9.2009/updates/x86_64/ -r https://mirrors.aliyun.com/centos-altarch/7.9.2009/updates/aarch64/ -r https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/ -r https://mirrors.aliyun.com/centos-altarch/7.9.2009/os/aarch64/ -r https://mirrors.aliyun.com/epel/7/x86_64/
C_CREATEREPOLIB: Critical: cr_get_remote_metadata: curl_easy_perform failed: HTTP response code said error: The requested URL returned error: 403 Forbidden
Warning: Downloading of repodata failed: https://mirrors.aliyun.com/epel/7/x86_64/