diff --git tools/bump-buildfarm-to-latest.sh tools/bump-buildfarm-to-latest.sh
index 591347e..1e68cdf 100755
--- tools/bump-buildfarm-to-latest.sh
+++ tools/bump-buildfarm-to-latest.sh
@@ -122,7 +122,7 @@ EOM
after_rebase() {
# Verify that upstream's test suite passes
- bazelisk test -- //src/test/java/build/buildfarm:all
+ bazelisk test --test_output=errors -- //src/test/java/build/buildfarm:all
# Push rebased changes back to Spotify's fork of upstream
git push -u origin HEAD