Guix HPC Julia package encoding issue

[Mauritz Stenek]

Hello,

I installed the julia (v1.9.3) package from the HPC Guix channel; 
running julia from the terminal, I get this warning in the REPL:

> WARNING: failed to select UTF-8 encoding, using ASCII

Adding subsequent packages will list this warning as well when 
they're compiling.

Is this a bug?

Thanks.

--
Mauritz Stenek <mstenek@disroot.org>