Hi,

This issue was resolved a few years ago and no longer persists in the
latest master commit:
--8<---------------cut here---------------start------------->8---
guix time-machine --commit=de714bcb46d61922e0efc10783ea23fb0202f583 -- \
build --no-substitutes --system=i686-linux go-gopkg-in-yaml-v2

/gnu/store/61m4rd81mcp323fg53bazkhxqi91v2c4-go-gopkg-in-yaml-v2-2.4.0
--8<---------------cut here---------------end--------------->8---

Covered in one of these commits:

* 30c776a6a8 gnu: go-gopkg-in-yaml-v2: Update to 2.4.0.
* c569430b6c gnu: go-gopkg-in-yaml-v2: Fix test suite on 32-bit systems.

Closing as resolved.

--
Oleg