Error then run "make test"

docker version
Client:
Version: 1.12.0
API version: 1.24
Go version: go1.6.3
Git commit: 8eab29e
Built: Thu Jul 28 22:11:10 2016
OS/Arch: linux/amd64

go version
go version go1.6.2 linux/amd64
Log
https://www.dropbox.com/s/8b7ou8x01jgknif/mattermost.log?dl=0

Please help me !