$ git clone -n https://src.fedoraproject.org/rpms/clang10.git /var/lib/mock/f38-build-side-42-init-devel-710628-27243/root/chroot_tmpdir/scmroot/clang10
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-710628-27243/root/chroot_tmpdir/scmroot/clang10'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/clang10.git/': The requested URL returned error: 503