Checks are failing. Will not request review until checks are succeeding. If you'd like to override that behavior, comment assign set of reviewers

assign set of reviewers

(The single failure is due to a socket timeout, which seems flaky as it wasn't there in the previous run; I'll anyway rerun the tests by rebasing on HEAD)

Assigning reviewers. If you would like to opt out of this review, comment assign to next reviewer:

R: @damondouglas for label java.
R: @damondouglas for label io.
R: @nielm for label spanner.

Available commands:

• stop reviewer notifications - opt out of the automated review tooling
• remind me after tests pass - tag the comment author after tests pass
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LGTM