diff --git a/pkgs/applications/networking/browsers/chromium/common.nix b/pkgs/applications/networking/browsers/chromium/common.nix
index f0be1d3a5c99..e7e05416dfa8 100644
--- a/pkgs/applications/networking/browsers/chromium/common.nix
+++ b/pkgs/applications/networking/browsers/chromium/common.nix
@@ -526,6 +526,24 @@ let
       # preventing compilations of chromium with versions below their intended version, not about running the very
       # exact version or even running a newer version.
       ./patches/chromium-136-nodejs-assert-minimal-version-instead-of-exact-match.patch
+    ]
+    ++ lib.optionals (chromiumVersionAtLeast "138") [
+      (fetchpatch {
+        # Unbreak building with Rust 1.89+ which introduced
+        # a new mismatched_lifetime_syntaxes lint.
+        # https://issues.chromium.org/issues/424424323
+        name = "chromium-138-rust-1.86-mismatched_lifetime_syntaxes.patch";
+        # https://chromium-review.googlesource.com/c/chromium/src/+/6658267
+        url = "https://chromium.googlesource.com/chromium/src/+/94a87ff38c51fd1a71980a5051d3553978391608^!?format=TEXT";
+        decode = "base64 -d";
+        includes = [ "build/rust/cargo_crate.gni" ];
+        hash = "sha256-xf1Jq5v3InXkiVH0uT7+h1HPwZse5MDcHKuJNjSLR6k=";
+      })
+    ]
+    ++ lib.optionals (!chromiumVersionAtLeast "138") [
+      # Rebased variant of the patch above for
+      # electron 35 (M134) and 36 (M136)
+      ./patches/chromium-134-rust-1.86-mismatched_lifetime_syntaxes.patch
     ];
 
     postPatch =
diff --git a/pkgs/applications/networking/browsers/chromium/patches/chromium-134-rust-1.86-mismatched_lifetime_syntaxes.patch b/pkgs/applications/networking/browsers/chromium/patches/chromium-134-rust-1.86-mismatched_lifetime_syntaxes.patch
new file mode 100644
index 000000000000..51e60a711a7a
--- /dev/null
+++ b/pkgs/applications/networking/browsers/chromium/patches/chromium-134-rust-1.86-mismatched_lifetime_syntaxes.patch
@@ -0,0 +1,14 @@
+diff --git a/build/rust/cargo_crate.gni b/build/rust/cargo_crate.gni
+index 8266c44cbd1dfb8a53797dbe911ea74c32ce070e..ec7d751f2d068151dfeb71aa1f6510483bebd95c 100644
+--- a/build/rust/cargo_crate.gni
++++ b/build/rust/cargo_crate.gni
+@@ -285,6 +285,9 @@ template("cargo_crate") {
+     }
+     rustenv = _rustenv
+
++    # 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"
+     }