--- chromium-139.0.7258.127/components/qr_code_generator/BUILD.gn.orig	2025-08-11 15:26:04.000000000 -0700
+++ chromium-139.0.7258.127/components/qr_code_generator/BUILD.gn	2025-08-19 00:22:43.663436497 -0700
@@ -57,6 +57,9 @@
     ":error",
     "//third_party/rust/qr_code/v2:lib",
   ]
+
+  # See https://crbug.com/429255379): Stop suppressing this warning.
+  rustflags = [ "-Amismatched_lifetime_syntaxes" ]
 }
 
 source_set("unit_tests") {