Make`update-manifest` command fail loudly

[gterzian]

./mach update-manifest seems to generally fail silently, compared to the equivalent direct command using ./mach test-wpt --manifest-update. For example if no servo binary has been build, you'll get a clear error from ./mach test-wpt --manifest-update and a silent failure from ./mach update-manifest.

[ANURADHAJHA99]

@jdm My name is Anuradha. I am interested in servo as a project in rgsoc. I have set up the dev and nightly instance of the servo. I wish to contribute in servo project in rgsoc. Kindly assign me the following issue and guide me regrading the problem. Thank you

[jdm]

@ANURADHAJHA99 Sorry, this isn't an issue that is well understood. Have you followed the instructions at https://github.com/servo/servo/wiki/Implementing-a-web-standard-(RGSoC)? That's a much more useful introduction to the code than an issue like this.