intermittent build failure due to some issue in package management

[madhukar93]

[INFO]  --> Fetching gopkg.in/mgo.v2.
[INFO]  --> Fetching gopkg.in/yaml.v2.
[WARN]  Unable to checkout gopkg.in/mgo.v2
[ERROR] Update failed for gopkg.in/mgo.v2: Cannot detect VCS
[WARN]  Unable to checkout gopkg.in/yaml.v2
[ERROR] Update failed for gopkg.in/yaml.v2: Cannot detect VCS
[ERROR] Failed to install: Cannot detect VCS
Cannot detect VCS

refer: Masterminds/glide#449

local:

travis:

failure:
https://travis-ci.org/grofers/go-codon/jobs/427082960

success:
https://travis-ci.org/grofers/go-codon/jobs/427082961

[vaishali-ntnx]

I am also getting the same issue.