Today https://phabricator.wikimedia.org/diffusion/OMWC/browse/master/wmf-config/InitialiseSettings.php managed to load only at third attempt for me:
- 503 from Varnish;
UNRECOVERABLE FATAL ERROR <<<
Maximum execution time of 10 seconds exceeded
/srv/phab/libphutil/src/utils/utils.php:775
┻━┻ ︵ ¯\_(ツ)_/¯ ︵ ┻━┻
- Success!