[19:36:30] <Krinkle>	 tgr|away: can you add an example of the failure for https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1060787  at https://phabricator.wikimedia.org/T362425? Our CI depends on fetching from composer npm etc on every build already. Last few times, these were not isolated errors relating to neither RL nor to a third party that we don't already depend on in CI, so would be good to have a record of it, so that in the future we know what to 
[19:36:30] <Krinkle>	 look for to remove or improve it, instead of keeping forever.
[19:37:01] <Krinkle>	 for example that task was closed in July because CI was completely unable to cache anything, that was broken for 3 months and this helped surface that.