This job started failing in GitHub Actions with this error:
## $ bazel run demo-rs --verbose_failures --noshow_progress
Downloading https://releases.bazel.build/3.1.0/release/bazel-3.1.0-linux-x86_64...
could not run Bazel: could not start Bazel: fork/exec /home/runner/work/cxx/cxx/tools/bazel: permission denied
##[error]Process completed with exit code 1.