CI is broken

[gonzaloserrano]

https://travis-ci.org/NeowayLabs/wabbit/jobs/594463205

19.04s$ go get github.com/fsouza/go-dockerclient
# github.com/docker/docker/pkg/archive
../../docker/docker/pkg/archive/archive.go:365:5: hdr.Format undefined (type *tar.Header has no field or method Format)
../../docker/docker/pkg/archive/archive.go:365:15: undefined: tar.FormatPAX
../../docker/docker/pkg/archive/archive.go:1160:7: hdr.Format undefined (type *tar.Header has no field or method Format)
../../docker/docker/pkg/archive/archive.go:1160:17: undefined: tar.FormatPAX
../../docker/docker/pkg/archive/copy.go:346:7: hdr.Format undefined (type *tar.Header has no field or method Format)
../../docker/docker/pkg/archive/copy.go:346:17: undefined: tar.FormatPAX
The command "go get github.com/fsouza/go-dockerclient" exited with 2.