Your bug report

#78950: mono-2.4.2.3 (and thus all other mono packages) is broken on x86_64

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 78950@debbugs.gnu.org.

-- 
78950: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=78950
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