There is a REST API for Gerrit:
https://gerrit-review.googlesource.com/Documentation/rest-api.html

For example, https://chromium-review.googlesource.com/changes/525855/
provides JSON (unfortunately does not appear to be legal JSON as first characters are )]}'\n

Might be complicated, but we can use the JSON results something like:

let messageIndex = data.messages.length,
  currentResults = {};
while (messageIndex -- && !currentResults.complete) {
  let message = data.messages[messageIndex].message;
  if (message.includes('\n\nDry run: Try jobs \n')) {
    if (message.includes('\nDry run: Try jobs failed on the following builders:')) {
      failed(message, currentResults);
    }
    else {
      succeeded(message, currentResults)
    }  
  }
}

This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The script has been updated multiple times since this bug.