$ git clone -n https://github.com/fedora-riscv/firefox.git /var/lib/mock/f40-build-2009271-45467/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/f40-build-2009271-45467/root/chroot_tmpdir/scmroot/firefox'...
fatal: unable to access 'https://github.com/fedora-riscv/firefox.git/': Failed to connect to github.com port 443 after 133683 ms: Couldn't connect to server