actually test the problematic early-cancel for actions

I've already fixed several bugs that I think this test would've caught.

Change-Id: I1acee23cca40649efa400d5c36b5907550a1ed64
2 files changed
tree: 10e4e5715491e901669e6ded9c1b146482a5608f
  1. aos/
  2. doc/
  3. frc971/
  4. output/
  5. vision/
  6. .clang-format
  7. .gitignore
  8. README.txt