Add extra diagnostics.

Author: Alexhuszagh

.github/workflows/bench.yml

@@ -18,6 +18,8 @@ jobs:
           submodules: recursive
       - uses: dtolnay/rust-toolchain@stable
 
+      - run: git submodule update --init
+
       - if: matrix.os == 'ubuntu-latest'
         name: Get Linux CPU Info
         run: cat /proc/cpuinfo