Error connecting or validating Docker version

[MartinThoma]

I'm using WSL2 and I have problems using dockscan:

$ docker --version
Docker version 19.03.13, build 4484c46d9d

$ uname -a
Linux AM-NB-115 4.19.104-microsoft-standard #1 SMP Wed Feb 19 06:37:35 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

$ dockscan unix:///var/run/docker.sock
E, [2021-01-03T14:10:35.582568 #6777] ERROR -- : Error connecting or validating Docker version

How can I use it?

[MartinThoma]

I have the same issue on a "real" Ubuntu 20.04 machine.