Scope launch returns no helpful message when image pulling fails

[davkal]

vagrant@jessie-amd64:~$ ./scope launch
Unable to find image 'weaveworks/scope:latest' locally
Pulling repository weaveworks/scope
time="2015-06-11T09:37:03Z" level=fatal msg="Get https://index.docker.io/v1/repositories/weaveworks/scope/images: dial tcp: lookup index.docker.io on 10.0.2.3:53: read udp 10.0.2.3:53: i/o timeout" 
Unable to find image 'gliderlabs/alpine:latest' locally
Pulling repository gliderlabs/alpine
time="2015-06-11T09:37:18Z" level=fatal msg="Get https://index.docker.io/v1/repositories/gliderlabs/alpine/images: dial tcp: lookup index.docker.io on 10.0.2.3:53: read udp 10.0.2.3:53: i/o timeout" 

Weave Scope is reachable at the following URL(s):
vagrant@jessie-amd64:~$ 

[c1freitas]

+1 Same here.

[tomwilkie]

@c1freitas Sorry about that! I'll work on a nicer message tomorrow.

[tomwilkie]

Thats better:

vagrant@ubuntu-14:~/src/github.com/weaveworks/scope$ ./scope launch
Unable to find image 'weaveworks/scope:latest' locally
Pulling repository weaveworks/scope
time="2015-06-23T14:26:19Z" level=fatal msg="Get https://index.docker.io/v1/repositories/weaveworks/scope/images: dial tcp 52.5.4.145:443: connection timed out" 
vagrant@ubuntu-14:~/src/github.com/weaveworks/scope$