Your bug report

#38050: Guix fails during downloading a substitute of google-brotli, throws an ugly backtrace

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 38050@debbugs.gnu.org.

-- 
38050: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=38050
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