Why std_data_json is not default in phobos

[Seb]

On Thursday, 22 February 2018 at 10:40:11 UTC, Jonathan M Davis 
wrote:
> There is some testing that is done against a set of projects on 
> code.dlang.org, though I get the impression that it's not very 
> reliable (it frequently seems to fail due to reasons unrelated 
> to the PRs being tested), and for better or worse, it doesn't 
> have to pass for something to be merged.

It has to pass since a few weeks.