Imports
- github.com/pkg/errors
- github.com/opencontainers/go-digest
- github.com/containerd/containerd/log/logtest
- github.com/containerd/containerd/pkg/testutil
- github.com/containerd/containerd/content
- github.com/opencontainers/image-spec/specs-go/v1
- github.com/containerd/containerd/errdefs
- gotest.tools/assert