Missing error info in `ng serve` since rc1

[SanderElias]

Bug Report or Feature Request (mark with an x)

- [x ] bug report -> please search issues before submitting
- [ ] feature request

Versions.

Angular CLI: 1.5.0-rc.1
Node: 8.7.0
OS: linux x64
Angular: 5.0.0-rc.3
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

@angular/cli: 1.5.0-rc.1
@angular-devkit/build-optimizer: 0.0.28
@angular-devkit/core: 0.0.20
@angular-devkit/schematics: 0.0.34
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.8.0-rc.1
@schematics/angular: 0.0.46
typescript: 2.5.3

Repro steps.

clone this repo
ng serve

The log given by the failure.

This is the output of the ng serve

As you can see, the error log in there is not so helpful

Desired functionality.

proper error logging

[filipesilva]

I have a fix incoming in #8109. Meanwhile, downgrading Angular to 5.0.0-rc.2 should fix it.

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