refactor(registry): Expand json serialization error reporting
refactor(registry): Expand json serialization error reporting

bcwaldon/fleet,mookjp/fleet,WPMedia/fleet,giantswarm/fleet,mwitkow-io/fleet,mischief/fleet,bcwaldon/fleet,jonboulle/fleet,improbable-io/fleet,mwhooker/fleet,octoblu/fleet,improbable-io/fleet,WPMedia/fleet,dongsupark/fleet,bviswana101/fleet,improbable-io/fleet,mwitkow/fleet,webwlsong/fleet,mwitkow-io/fleet,ecnahc515/fleet,esatterwhite/fleet,jonboulle/fleet,flandr/fleet,esatterwhite/fleet,paveltiunov/fleet,ecnahc515/fleet,webwlsong/fleet,endocode/fleet,coreos/fleet,bcwaldon/fleet,hhoover/fleet,dalbani/fleet,hhoover/fleet,wuqixuan/fleet,octoblu/fleet,ecnahc515/fleet,mwhooker/fleet,paveltiunov/fleet,giantswarm/fleet,dalbani/fleet,endocode/fleet,jonboulle/fleet,mookjp/fleet,dongsupark/fleet,coreos/fleet,thepwagner/fleet,coreos/fleet,flandr/fleet,giantswarm/fleet,wuqixuan/fleet,endocode/fleet,thepwagner/fleet,dongsupark/fleet,dalbani/fleet,bviswana101/fleet,mwitkow/fleet,mischief/fleet