$ /usr/bin/mergerepo_c --koji -b /mnt/koji/repos/dist-an7-updates-build/34406/x86_64/blocklist -a x86_64 -o /tmp/koji/tasks/5578/215578/repo --arch-expand -g /mnt/koji/repos/dist-an7-updates-build/34406/groups/comps.xml -r file:///tmp/koji/tasks/5578/215578/repo_34406_premerge/ -r http://build.openanolis.cn/kojifiles/repos/anolis-7-local-repo-external/x86_64/ -r http://build.openanolis.cn/kojifiles/repos/centos/7.7.1908/updates/x86_64/ -r http://build.openanolis.cn/kojifiles/repos/centos/7.7.1908/os/x86_64/ -r https://mirrors.tuna.tsinghua.edu.cn/epel/7/x86_64/
C_CREATEREPOLIB: Critical: cr_get_remote_metadata: Error while downloadig files: curl_easy_perform failed: SSL connect error: OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to mirrors.tuna.tsinghua.edu.cn:443 
Warning: Downloading of repodata failed: https://mirrors.tuna.tsinghua.edu.cn/epel/7/x86_64/
type group added to list from path: https://mirrors.tuna.tsinghua.edu.cn/epel/7/x86_64/repodata/6fdc8759341bcdc6f5dabd7cc7c7c6226178416be2d19445f8233fd52fe960fd-comps-Everything.x86_64.xml 
type group_gz added to list from path: https://mirrors.tuna.tsinghua.edu.cn/epel/7/x86_64/repodata/b4c0fb5c9dbb817c77e50fd8fb6b67e3d5a781d95a95a4b3fdcfa131df424cc4-comps-Everything.x86_64.xml.gz 
type prestodelta added to list from path: https://mirrors.tuna.tsinghua.edu.cn/epel/7/x86_64/repodata/d96c37ce9a54f6aca160ac320df68d876bf036afc13e803f1ac626a9ca81de30-prestodelta.xml.gz 
type updateinfo added to list from path: https://mirrors.tuna.tsinghua.edu.cn/epel/7/x86_64/repodata/1e624c1d5d073e222b6d7e92d1dd05e485fd1adaac9a34215a29c4b6c83bec84-updateinfo.xml.bz2