Fail presubmit on warnings

Change-Id: I6b44b36d16b3285bb752810a98831e05e58d8c4e
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/qg/+/121010
Reviewed-by: Alexei Frolov <frolv@google.com>
Pigweed-Auto-Submit: Erik Gilling <konkers@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
6 files changed
tree: 2350ea49e153418b54b5284f4417506cd36a084e
  1. qg/
  2. qg-cli/
  3. tools/
  4. .gitignore
  5. Cargo.lock
  6. Cargo.toml
  7. rustfmt.toml