Patch will be included upstream in 1.47: https://github.com/rust-lang/rust/pull/74416
diff --git a/src/librustc_codegen_ssa/back/linker.rs b/src/librustc_codegen_ssa/back/linker.rs
index e64aafa599f..12575ac4358 100644
--- a/src/librustc_codegen_ssa/back/linker.rs
+++ b/src/librustc_codegen_ssa/back/linker.rs
@@ -28,7 +28,7 @@ use rustc_target::spec::{LinkOutputKind, LinkerFlavor, LldFlavor};
 pub fn disable_localization(linker: &mut Command) {
     // No harm in setting both env vars simultaneously.
     // Unix-style linkers.
-    linker.env("LC_ALL", "C");
+    linker.env("LC_ALL", "en_US.UTF-8");
     // MSVC's `link.exe`.
     linker.env("VSLANG", "1033");
 }
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<tr><td><span title='2021-01-06 17:52:45 +0200'>2021-01-06</span></td><td><a href='/guix/commit/gnu/packages/sagemath.scm?id=6be271460b9f8110f94dc7c363205153744ac9c5'>gnu: python-cypari2: Update to 2.1.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sagemath.scm (python-cypari2): Update to 2.1.2.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2020-09-30 09:28:26 +0300'>2020-09-30</span></td><td><a href='/guix/commit/gnu/packages/sagemath.scm?id=1628d57bb5c6ab30a04202c229de642b94faac85'>gnu: Fix package references.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/algebra.scm (iml)[inputs]: Correctly refer to package
inputs.
* gnu/packages/astronomy.scm (xplanet),
* gnu/packages/audio.scm (redkite, libaudec, lv2lint, lv2toweb),
* gnu/packages/bioconductor.scm (r-cummerbund),
* gnu/packages/chicken.scm (chicken),
* gnu/packages/conky.scm (conky),
* gnu/packages/cran.scm (r-latex2exp),
* gnu/packages/crates-io.scm (rust-rgb),
* gnu/packages/databases.scm (mariadb),
* gnu/packages/diffoscope.scm (reprotest),
* gnu/packages/file-systems.scm (glusterfs),
* gnu/packages/finance.scm (electron-cash),
* gnu/packages/games.scm (rinutils, ksudoku, kdiamond, kigo),
* gnu/packages/geo.scm (grass),
* gnu/packages/gnome.scm (libmediaart, gnome-contacts, geoclue),
* gnu/packages/gnucash.scm (aqbanking),
* gnu/packages/image.scm (mtpaint),
* gnu/packages/kde-internet.scm (kopete, ktorrent),
* gnu/packages/kde-utils.scm (kmousetool, kmouth, kronometer),
* gnu/packages/linphone.scm (liblinphone),
* gnu/packages/maths.scm (ppl),
* gnu/packages/mercury.scm (mercury-minimal),
* gnu/packages/music.scm (bjumblr, bschaffl, lsp-plugins,
spectacle-analyzer, helm, tap-lv2, wolf-shaper, shiru-lv2),
* gnu/packages/networking.scm (restinio),
* gnu/packages/prolog.scm (swi-prolog),
* gnu/packages/python-web.scm (gunicorn),
* gnu/packages/python-xyz.scm (python-docusign-esign),
* gnu/packages/ruby.scm (ruby-cucumber, ruby_version, ruby-addressable),
* gnu/packages/sagemath.scm (python-cypari2),
* gnu/packages/skarnet.scm (s6-linux-init),
* gnu/packages/vpn.scm (sshuttle),
* gnu/packages/web.scm (libcyaml),
* gnu/packages/xdisorg.scm (kbdd),
* gnu/packages/xorg.scm (xpra): Same.
</span></span></td><td>Efraim Flashner</td></tr>