Lichen Pan

In my case, it does not work with v1.17.4, but works well with 1.15.11. Thanks to @Mhs-220 and @Svendegroote91. I do not know why it works or why it does...

v1.16.15 has the same problem. Seems that v1.16 is a version where API changes a lot. I have seen some deprecated "pre-1.16" versions in other projects, like shown [here](https://github.com/k8snetworkplumbingwg/multus-cni/tree/v3.4.2/images/deprecated). Maybe...

I work on a 20 core platform. Maybe it is better to automize this configuration, but I do not know how to do it in Dockerfile. Yuri Shkuro 于 2020年11月13日周五...

In the new commit, I rollback the -j change. I am not familiar with Travis-ci, does the default setting for it use a four-core platform?

Will this tiny fix be merged?