since an update to fedora32, docker is not able to resolve hostnames. So it is not possible to install new packages or go get something.
tl;dr this is a temporary workaround until an official docker build for fedora is released
docker build --network=host . docker run --network=host imageid and for security reasons, of course for local development only, as this flag opens the whole network to the image (ignoring explicit port mappings too)...