Your bug report

#21784: Cannot build xz (download returns 403)

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 21788@debbugs.gnu.org.

-- 
21784: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21784
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