Comment 1 for bug 1844521

afaict, this is a bug in the ubuntu CI infrastructure, not in the wireguard package. As [autopkgtest](https://salsa.debian.org/ci-team/autopkgtest/blob/master/doc/README.package-tests.rst) documentation says:

    Debian's production CI infrastructure allows unrestricted network
    access, in Ubuntu's infrastructure access to sites other than
    `*.ubuntu.com` and `*.launchpad.net` happens via a proxy (limited to
    DNS and http/https).

I've just submitted https://salsa.debian.org/ci-team/autopkgtest/merge_requests/61 -- if it is merged, i will add `open-internet-access` to the list of restrictions on this test in the wireguard package, so that ubuntu CI will feel ok skipping it.