$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-protocol.git /var/lib/mock/f41-build-705879-13001/root/chroot_tmpdir/scmroot/rust-nu-protocol
Cloning into '/var/lib/mock/f41-build-705879-13001/root/chroot_tmpdir/scmroot/rust-nu-protocol'...
$ git fetch origin 63597e16cabe583ea13d86e65e1a18d78e18de52:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/rust-nu-protocol.git/': OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to src.fedoraproject.org:443 
$ git reset --hard 63597e16cabe583ea13d86e65e1a18d78e18de52
HEAD is now at 63597e1 Update to 0.91.0 (rhbz#2257511)