Looks like the last time we tried to build a veyron_tiger canary was last Friday, Feb 23, when we tried twice after not having built one for three days before that. It was passing early on the 20th.
Looks like the last run that actually returned a result (https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_tiger-release/builds/1963) failed during Uprev for reasons that are not obvious, and the run after that was aborted during the same stage. It's not causing master-release failures so I don't know if this is critical but it does mean this board has had no canaries for almost a week. Should we mark it experimental and get runs going until it turns green?