$ /usr/bin/mergerepo_c --pkgorigins --all -a aarch64 -o /tmp/koji/tasks/6489/16489/repo --arch-expand -g /mnt/koji/repos/dist-an8-gcc-toolset-9-build/818/groups/comps.xml -r file:///tmp/koji/tasks/6489/16489/repo_818_premerge/ -r http://build.openanolis.org/kojifiles/repos/anolis-8-local-repo-external/aarch64/ -r https://mirrors.aliyun.com/centos-vault/8.2.2004/BaseOS/aarch64/os/ -r https://mirrors.aliyun.com/centos-vault/8.2.2004/AppStream/aarch64/os/ -r https://mirrors.aliyun.com/centos-vault/8.2.2004/PowerTools/aarch64/os/ -r https://mirrors.aliyun.com/centos-vault/8.2.2004/Devel/aarch64/os/ -r https://mirrors.aliyun.com/centos-vault/8.2.2004/HighAvailability/aarch64/os/ -r https://mirrors.aliyun.com/centos-vault/8.2.2004/centosplus/aarch64/os/ -r https://mirrors.aliyun.com/centos-vault/8.2.2004/cr/aarch64/os/ -r https://mirrors.aliyun.com/centos-vault/8.2.2004/extras/aarch64/os/
C_CREATEREPOLIB: Critical: cr_get_remote_metadata: Error while downloadig files: curl_easy_perform failed: Couldn't resolve host name: Could not resolve host: mirrors.aliyun.com
Warning: Downloading of repodata failed: https://mirrors.aliyun.com/centos-vault/8.2.2004/extras/aarch64/os/