Debian testing has applied patches and rebuilt almost their entire repository in order to have 32bit architectures report time type as _TIME_BITS=64 - because of this change, it seems that the google/gopacket dependency now causes a failure to build on 32bit arm architectures c.f. https://gitlab.com/kalilinux/packages/naabu/-/jobs/6843360661#L1515

The Debian go maintainers submitted a patch to gopacket/gopacket which seems like it's at least somewhat more actively maintained at gopacket/gopacket#52 which they accepted and merged in.

Experimentally, in Kali, I switched over to using gopacket/gopacket instead, and the build of naabu does seem to work fine, the CI also reports successful builds c.f. https://gitlab.com/kalilinux/packages/naabu/-/jobs/6852393372 , so I'm asking the naabu project to consider moving to the gopacket/gopacket repository, or, if you are uncomfortable with that, perhaps forking the google/gopacket repository, and applying the pull request mentioned above to it, and using that instead?