Build fails without any error messages

Jobs are consistently failing mid-stream, and reporting Build Errored, but without any reasons or error messages logged.

Travis completes the first of three command in a very simple Travis script and then seems to just abort and report failure without logging any reasons. This is a consistent and ongoing problem, where maybe one in 10 jobs succeed, and the rest fail without any meaningful reason.

An example job failure is here:

Have you tried running your build in debug mode?

Just tried that with the following command, with mytoken replaced with the token from my API user profile, and got “access denied”:

curl -s -X POST \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -H "Travis-API-Version: 3" \
  -H "Authorization: token mytoken" \
  -d "{\"quiet\": true}" \

@Montana Any further suggestions?