Finally, I could rerun the tests in guix environment, and they DO NOT FAIL on aarch64-for-armhf inside guix environment -s armhf-linux grep. Editing the gettext-minimal package in order to enable tests again and trying to enter guix environment -s armhf-linux grep again, sure enough, gettext-minimal fails with the same error again. What is going on?! But ./pre-inst-env guix build -s armhf-linux grep works. But ./pre-inst-env guix environment -s armhf-linux grep fails in gettext-minimal. WTF?! This is on dover.guix.info.