fixup! build: migrate Rust 1.64 -> 1.65

Author: ErichDonGubler

.github/workflows/cts.yml

@@ -49,7 +49,7 @@ jobs:
       - name: install rust
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: stable
+          toolchain: 1.65
           target: ${{ matrix.target }}
           profile: minimal