Steps to reproduce:

1. Follow steps in T15745 to trigger EXCEPTION: (PhutilMissingSymbolException)
2. Read the output and find For more information, see: https://phurl.io/u/newclasses
3. Try to access that link

Expected outcome:

Link works and redirects to https://we.phorge.it/book/contrib/article/adding_new_classes/

Actual outcome:

[acko@fedora ~]$ curl -I https://phurl.io/u/newclasses
HTTP/1.1 503 Service Unavailable: Back-end server is at capacity
Connection: keep-alive

Additional comments:

Either that server (who owns it?) needs to be fixed, or two URIs in Arcanist need to be changed from short URIs to full ones:

[acko@fedora arcanist (master $|u=)]$ grep -r "phurl.io" .
./src/runtime/ArcanistRuntime.php:          'https://phurl.io/u/noninteractive'));
./src/init/lib/PhutilMissingSymbolException.php:      'For more information, see: https://phurl.io/u/newclasses',

Known addresses

Maybe Phacility will donate this domain to Phorge :D who knows. Waiting for this info, it costs nothing to keep track of this:

(Probably more)