bug#56353: sbcl-2.2.6 build fail

[Wensheng Xie]

Hi, guix:

the command:
guix package -u

log:
/gnu/store/6lq7dfdfzrlp24lmhj95fcnvkr2mrqfz-sbcl-2.2.6.drv wird erstellt …
- „build-doc“-Phasebuilder for 
`/gnu/store/6lq7dfdfzrlp24lmhj95fcnvkr2mrqfz-sbcl-2.2.6.drv' failed with exit 
code 1
Erstellung von /gnu/store/6lq7dfdfzrlp24lmhj95fcnvkr2mrqfz-sbcl-2.2.6.drv 
fehlgeschlagen
Das Erstellungsprotokoll kann unter 
„/var/log/guix/drvs/6l/q7dfdfzrlp24lmhj95fcnvkr2mrqfz-sbcl-2.2.6.drv.bz2“ 
eingesehen werden.
guix package: Fehler: build of
`/gnu/store/6lq7dfdfzrlp24lmhj95fcnvkr2mrqfz-sbcl-2.2.6.drv' failed

This is what I had right. If you need more, please let me know.

best regards
wxie