{F32351032}As always, I checked first but didn't see anyone else reporting this. I went to look at my watchlist and got a table that reads:
( ! ) Fatal error: Maximum execution time of 30 seconds exceeded in /vagrant/mediawiki/vendor/composer/ClassLoader.php on line 373
Call Stack
# Time Memory Function Location
1 0.0001 398952 {main}( ) .../index.php:0
2 0.0010 402816 require( '/vagrant/mediawiki/index.php' ) .../index.php:5
3 0.4882 4528288 wfIndexMain( ) .../index.php:46
4 0.4887 4530416 MediaWiki->run( ) .../index.php:53
5 0.4897 4530416 MediaWiki->main( ) .../MediaWiki.php:543
6 32.4637 11851784 MediaWiki->{closure:/vagrant/mediawiki/includes/MediaWiki.php:945-951}( ) .../MediaWiki.php:960
7 32.4637 11851784 OutputPage->output( ) .../MediaWiki.php:947
8 32.4795 12006824 SkinVector->outputPage( ) .../OutputPage.php:2615
9 32.4903 12008528 SkinVector->generateHTML( ) .../SkinTemplate.php:144
10 32.4928 12010744 OutputPage->headElement( ) .../SkinMustache.php:58
11 32.4929 12010744 OutputPage->getRlClient( ) .../OutputPage.php:3055
12 32.4929 12010744 OutputPage->getRlClientContext( ) .../OutputPage.php:2974
13 32.4941 12018536 OutputPage->getResourceLoader( ) .../OutputPage.php:2930
14 32.4941 12018536 MediaWiki\MediaWikiServices->getResourceLoader( ) .../OutputPage.php:3144
15 32.4941 12018536 MediaWiki\MediaWikiServices->getService( ) .../MediaWikiServices.php:1098
16 32.4941 12018536 MediaWiki\MediaWikiServices->createService( ) .../ServiceContainer.php:416
17 32.4942 12019312 MediaWiki\MediaWikiServices->{closure:/vagrant/mediawiki/includes/ServiceWiring.php:964-1022}( ) .../ServiceContainer.php:447
18 32.4970 12076888 ResourceLoader->register( ) .../ServiceWiring.php:989
19 32.4998 12105416 ResourceLoader->isFileModule( ) .../ResourceLoader.php:366
20 32.4998 12105416 is_subclass_of ( ) .../ResourceLoader.php:637
21 32.4998 12105472 spl_autoload_call ( ) .../ResourceLoader.php:637
22 32.5000 12105528 Composer\Autoload\ClassLoader->loadClass( ) .../ResourceLoader.php:637
23 32.5000 12105528 Composer\Autoload\ClassLoader->findFile( ) .../ClassLoader.php:321
24 32.5000 12105528 Composer\Autoload\ClassLoader->findFileWithExtension( ) .../ClassLoader.php:351