There are a few [[ https://logstash-beta.wmflabs.org/goto/85d353aacb89871729174d9ccacabe3f | Class 'LCRun3' not found errors reported on the beta cluster ]]:
Stack trace
Stacktrace
Uncaught Error: Class 'LCRun3' not found in /tmp/lci_dvhbSz:25
Stack trace:
#0 /srv/mediawiki/php-master/includes/TemplateParser.php(212): LightnCandy\LightnCandy::{closure}(Array, Array)
#1 /srv/mediawiki/php-master/skins/MinervaNeue/includes/skins/MinervaTemplate.php(220): TemplateParser->processTemplate('menu', Array)
#2 /srv/mediawiki/php-master/skins/MinervaNeue/includes/skins/MinervaTemplate.php(261): MinervaTemplate->getMainMenuHtml(Array)
#3 /srv/mediawiki/php-master/skins/MinervaNeue/includes/skins/MinervaTemplate.php(53): MinervaTemplate->render(Array)
#4 /srv/mediawiki/php-master/includes/skins/SkinTemplate.php(219): MinervaTemplate->execute()
#5 /srv/mediawiki/php-master/includes/OutputPage.php(2654): SkinTemplate->outputPage()
#6 /srv/mediawiki/php-master/includes/exception/MWExceptionRenderer.php(150): OutputPage->output()
#7 /srv/mediawiki/php-master/includes/exception/MWExceptionRenderer.php(64): MWExceptionRenderer::reportHTML(Object(Error))
#8 /srv/mediawiki/php-master/includes/exception/MWEI can't repro the issue so I hope that this is already fixed. Possibly related to the LightnCandy upgrade in T121947.