I have a docker container listening on port 53 and I get this error when installing the fmt plugin:
Get https://raw.githubusercontent.com/micro-editor/plugin-channel/master/channel.json: dial tcp: lookup raw.githubusercontent.com on 127.0.0.1:53: read udp 127.0.0.1:38986->127.0.0.1:53: read: connection refused
I think this is due to port 53 being bound already but I guess I'm not 100% sure.