Parameter 'fail-on-error' does not work in full static mode. #7947

Versions

• nuxt: 2.14.3
• node: v12.13.1

Reproduction

https://github.com/sho-zy/fail-in-full-static

Steps to reproduce

1. Run $ yarn generate --fail-on-error

What is Expected?

Command failed with exit code 1.

What is actually happening?

Command completed normally.