Imports
- github.com/pkg/errors
- golang.org/x/net/context
- github.com/docker/docker/pkg/system
- github.com/docker/docker/image
- github.com/docker/docker/pkg/stringid
- github.com/docker/docker/builder/fscache
- github.com/docker/distribution/reference
- github.com/docker/docker/api/types/backend
- github.com/docker/docker/api/types
- github.com/docker/docker/builder