diff --git a/build/rust/cargo_crate.gni b/build/rust/cargo_crate.gni
index 0e73b54..0e002ef 100644
--- a/build/rust/cargo_crate.gni
+++ b/build/rust/cargo_crate.gni
@@ -310,6 +310,9 @@
       rustflags +=
           [ "-Awarnings" ]  # Suppress other warnings in 3rd-party crates.
 
+      # TODO(crbug.com/424424323): Clean up and enable.
+      rustflags += [ "-Amismatched_lifetime_syntaxes" ]
+
       if (!defined(build_native_rust_unit_tests)) {
         build_native_rust_unit_tests = _crate_type != "proc-macro"
       }