Change record status: 
Introduced in branch: 
3.0.x
Introduced in version: 
3.0.0
Description: 

As of #3344595: ComposerInspector::validate() should run `composer validate`, calling ComposerInspector::validate() will also run composer validate in the given directory. This means that the composer.json and composer.lock files in that directory must be usable and valid as far as Composer is concerned.

Impacts: 
Module developers