How to soft assert?

Could there be a syntax for letting a task tree proceed through errors, so that each child attempts execution regardless of earlier child exit status? Like for getting all linter output even though one of em fails.

Start by investigating Grunt's task-tree execution behavior and how child exit statuses affect later children. Define the desired soft-assert syntax and verify that all child tasks can run while still exposing their errors.

Written by the indexing model from the issue text.