[cloud functions] Fix error in handling results from try jobs
[cloud functions] Fix error in handling results from try jobs

Change-Id: I3175dc88684712c7d80e46a5d1c71b7a2eba57f5
Reviewed-on: https://dart-review.googlesource.com/c/dart_ci/+/119003
Reviewed-by: Jonas Termansen <092ec58085ae5e368bc39d18752740ff81a2d09c@google.com>

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