$ git clone -n https://src.fedoraproject.org/rpms/swift-lang.git /var/lib/mock/f33-build-282593-51734/root/chroot_tmpdir/scmroot/swift-lang
Cloning into '/var/lib/mock/f33-build-282593-51734/root/chroot_tmpdir/scmroot/swift-lang'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/swift-lang.git/': The requested URL returned error: 503