Hphpdoc\Collector has a non-<?hh grandparent

[ghost]

When running hphpdoc with hhvm version 3.15.2, the typechecker throws an error:

Catchable fatal error: Hack type error: Hphpdoc\Collector has a non-<?hh grandparent; this is not allowed in strict mode because that parent may define methods of unknowable name and type at .../vendor/appertly/hphpdoc/src/Collector.hh line 31

[ghost]

This issue can be fixed by depending on hackification/log instead of psr/log. (It's a Hacklang PSR log replacement maintained by me, still in the making.)

[doublecompile]

If you take a look at our composer.json, we depend on the following in the dev dependencies.

"libreworks/psr3-log-hhi": "^1.0.0"

This is a set of Hack typechecker definitions for the PSR-3 package.

Also, this executable is meant to be run without the type checker. If you're running from the command line, you can do:

hhvm -d hhvm.hack.lang.look_for_typechecker=0 /path/to/hphpdoc 

Perhaps we should add this CLI flag that to the documentation?