echo "$server_args" | xargs "$BT_TESTS_PYTHON_BIN" "$server_script" \
--port-file "$port_file" \
--trace-path-prefix "$trace_dir_native" &
echo "$server_args" | xargs "$BT_TESTS_PYTHON_BIN" "$server_script" \
--port-file "$port_file" \
--trace-path-prefix "$trace_dir_native" &