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='2019-01-17 14:04:23 +0100'>2019-01-17</span></td><td><a href='/guix/commit/gnu/installer/hostname.scm?id=b4658c258eaf7731dbb45409aedef58afc5de93a'>installer: Add hostname.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>