Try to get the cargo version

Author: sourcefrog

.github/workflows/codebuild.yml

@@ -10,6 +10,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+      - run: cargo rustc --version
+      - run: rustup toolchain list
       - run: cargo install cargo-nextest
       - run: cargo run --release mutants -j4 -vV
       - uses: actions/upload-artifact@v4