Stop R process if AppDriver fails in `test-examples` #1115

All 614 tests pass, 110 skipped in 1h 9m 13s

1 files ±0 70 suites ±0 1h 9m 13s ⏱️ +36s
724 tests ±0 614 ✅ ±0 110 💤 ±0 0 ❌ ±0
1 984 runs ±0 1 759 ✅ ±0 225 💤 ±0 0 ❌ ±0

Results for commit 3c2bee3. ± Comparison against earlier commit e60e5c8.