Your bug report

#31581: `guix system` requires guile-json?

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 31581@debbugs.gnu.org.

-- 
31581: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=31581
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