Hello,

On the 'staging' branch, Mesa fails a test for i686.  From
<https://ci.guix.gnu.org/log/60qnivsia72cd90r2wb5idzfsy2gnfx3-mesa-19.0.4>:

--8<---------------cut here---------------start------------->8---
Ok:                   64
Expected Fail:         0
Fail:                  1
Unexpected Pass:       0
Skipped:               0
Timeout:               0


The output from the failed tests:

62/65 mesa:gallium / u_format_test            FAIL     0.04 s (exit status 1)
--8<---------------cut here---------------end--------------->8---