diff --git a/go.mod b/go.mod
index c180bf87e..7742dc608 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/Microsoft/go-winio v0.4.14 // indirect
 	github.com/aws/aws-sdk-go v1.31.6 // indirect
 	github.com/containerd/containerd v1.3.0 // indirect
-	github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201216170557-0c8b1bd96905
+	github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201217071531-2b97b583765b
 	github.com/docker/cli v0.0.0-20191017083524-a8ff7f821017
 	github.com/docker/distribution v2.7.1+incompatible
 	github.com/docker/docker v1.4.2-0.20190924003213-a8608b5b67c7
@@ -22,7 +22,6 @@ require (
 	github.com/google/go-cmp v0.4.1
 	github.com/googleapis/gnostic v0.2.2 // indirect
 	github.com/gorilla/mux v1.7.3 // indirect
-	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/golang-lru v0.5.3 // indirect
 	github.com/kr/text v0.2.0 // indirect
 	github.com/maxbrunsfeld/counterfeiter/v6 v6.2.2
diff --git a/go.sum b/go.sum
index 1656a722b..5d0c551ed 100644
--- a/go.sum
+++ b/go.sum
@@ -105,8 +105,8 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/containerd/containerd v1.3.0 h1:xjvXQWABwS2uiv3TWgQt5Uth60Gu86LTGZXMJkjc7rY=
 github.com/containerd/containerd v1.3.0/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
-github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201216170557-0c8b1bd96905 h1:Av+fAIErx1aQD5gwZv7MfCQLBTuOTe5+WZJHTzGLfBc=
-github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201216170557-0c8b1bd96905/go.mod h1:Ss9eORo5n11UWOYXbItBtKVDY9LIIpYep2ZOfAExYp0=
+github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201217071531-2b97b583765b h1:tnP4txDzNKsBOISNYG/f48Mt477CBeh9sS5rlu8MvSY=
+github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201217071531-2b97b583765b/go.mod h1:E9uVkkBKf0EaC39j2JVW9EzdNhYvpz6eQIjILHebruk=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-oidc v2.1.0+incompatible/go.mod h1:CgnwVTmzoESiwO9qyAFEMiHoZ1nMCKZlZ9V6mm3/LKc=
@@ -262,12 +262,6 @@ github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-gateway v1.9.5/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
-github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
-github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
-github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY2I=
-github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
-github.com/hashicorp/go-multierror v1.1.0 h1:B9UzwGQJehnUY1yNrnwREHc3fGbC2xefo8g4TbElacI=
-github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+vmowP0z+KUhOZdA=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.3 h1:YPkqC67at8FYaadspW/6uE0COsBxS2656RLEr8Bppgk=
diff --git a/pkg/v1/internal/estargz/estargz.go b/pkg/v1/internal/estargz/estargz.go
index 531bef1b1..2411bf774 100644
--- a/pkg/v1/internal/estargz/estargz.go
+++ b/pkg/v1/internal/estargz/estargz.go
@@ -40,10 +40,11 @@ func ReadCloser(r io.ReadCloser, opts ...estargz.Option) (io.ReadCloser, v1.Hash
 	}
 	br := bytes.NewReader(bs)
 
-	rc, d, err := estargz.Build(io.NewSectionReader(br, 0, int64(len(bs))), nil, opts...)
+	rc, err := estargz.Build(io.NewSectionReader(br, 0, int64(len(bs))), opts...)
 	if err != nil {
 		return nil, v1.Hash{}, err
 	}
-	h, err := v1.NewHash(d.String())
+
+	h, err := v1.NewHash(rc.TOCDigest().String())
 	return rc, h, err
 }
diff --git a/vendor/github.com/containerd/stargz-snapshotter/estargz/build.go b/vendor/github.com/containerd/stargz-snapshotter/estargz/build.go
index bc1ed8fd9..55b1bf88d 100644
--- a/vendor/github.com/containerd/stargz-snapshotter/estargz/build.go
+++ b/vendor/github.com/containerd/stargz-snapshotter/estargz/build.go
@@ -36,7 +36,7 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/hashicorp/go-multierror"
+	"github.com/containerd/stargz-snapshotter/estargz/errorutil"
 	digest "github.com/opencontainers/go-digest"
 	"github.com/pkg/errors"
 	"golang.org/x/sync/errgroup"
@@ -45,6 +45,7 @@ import (
 type options struct {
 	chunkSize        int
 	compressionLevel int
+	prioritizedFiles []string
 }
 
 type Option func(o *options)
@@ -65,12 +66,39 @@ func WithCompressionLevel(level int) Option {
 	}
 }
 
+// WithPrioritizedFiles option specifies the list of prioritized files.
+// These files must be a complete path relative to "/" (e.g. "foo/bar",
+// "./foo/bar")
+func WithPrioritizedFiles(files []string) Option {
+	return func(o *options) {
+		o.prioritizedFiles = files
+	}
+}
+
+// Blob is an eStargz blob.
+type Blob struct {
+	io.ReadCloser
+	diffID    digest.Digester
+	tocDigest digest.Digest
+}
+
+// DiffID returns the digest of uncompressed blob.
+// It is only valid to call DiffID after Close.
+func (b *Blob) DiffID() digest.Digest {
+	return b.diffID.Digest()
+}
+
+// TOCDigest returns the digest of uncompressed TOC JSON.
+func (b *Blob) TOCDigest() digest.Digest {
+	return b.tocDigest
+}
+
 // Build builds an eStargz blob which is an extended version of stargz, from tar blob passed
-// through the argument. If there are some prioritized files are listed in the argument, these
+// through the argument. If there are some prioritized files are listed in the option, these
 // files are grouped as "prioritized" and can be used for runtime optimization (e.g. prefetch).
 // This function builds a blob in parallel, with dividing that blob into several (at least the
 // number of runtime.GOMAXPROCS(0)) sub-blobs.
-func Build(tarBlob *io.SectionReader, prioritized []string, opt ...Option) (_ io.ReadCloser, _ digest.Digest, rErr error) {
+func Build(tarBlob *io.SectionReader, opt ...Option) (_ *Blob, rErr error) {
 	var opts options
 	opts.compressionLevel = gzip.BestCompression // BestCompression by default
 	for _, o := range opt {
@@ -84,9 +112,9 @@ func Build(tarBlob *io.SectionReader, prioritized []string, opt ...Option) (_ io
 			}
 		}
 	}()
-	entries, err := sortEntries(tarBlob, prioritized)
+	entries, err := sortEntries(tarBlob, opts.prioritizedFiles)
 	if err != nil {
-		return nil, "", err
+		return nil, err
 	}
 	tarParts := divideEntries(entries, runtime.GOMAXPROCS(0))
 	writers := make([]*Writer, len(tarParts))
@@ -115,25 +143,43 @@ func Build(tarBlob *io.SectionReader, prioritized []string, opt ...Option) (_ io
 	}
 	if err := eg.Wait(); err != nil {
 		rErr = err
-		return nil, "", err
+		return nil, err
 	}
 	tocAndFooter, tocDgst, err := closeWithCombine(opts.compressionLevel, writers...)
 	if err != nil {
 		rErr = err
-		return nil, "", err
+		return nil, err
 	}
 	var rs []io.Reader
 	for _, p := range payloads {
 		fs, err := fileSectionReader(p)
 		if err != nil {
-			return nil, "", err
+			return nil, err
 		}
 		rs = append(rs, fs)
 	}
-	return readCloser{
-		Reader:    io.MultiReader(append(rs, tocAndFooter)...),
-		closeFunc: layerFiles.CleanupAll,
-	}, tocDgst, nil
+	diffID := digest.Canonical.Digester()
+	pr, pw := io.Pipe()
+	go func() {
+		r, err := gzip.NewReader(io.TeeReader(io.MultiReader(append(rs, tocAndFooter)...), pw))
+		if err != nil {
+			pw.CloseWithError(err)
+			return
+		}
+		if _, err := io.Copy(diffID.Hash(), r); err != nil {
+			pw.CloseWithError(err)
+			return
+		}
+		pw.Close()
+	}()
+	return &Blob{
+		ReadCloser: readCloser{
+			Reader:    pr,
+			closeFunc: layerFiles.CleanupAll,
+		},
+		tocDigest: tocDgst,
+		diffID:    diffID,
+	}, nil
 }
 
 // closeWithCombine takes unclosed Writers and close them. This also returns the
@@ -317,7 +363,8 @@ func importTar(in io.ReaderAt) (*tarFile, error) {
 				return nil, errors.Wrap(err, "failed to parse tar file")
 			}
 		}
-		if h.Name == PrefetchLandmark || h.Name == NoPrefetchLandmark {
+		switch trimNamePrefix(h.Name) {
+		case PrefetchLandmark, NoPrefetchLandmark:
 			// Ignore existing landmark
 			continue
 		}
@@ -364,17 +411,18 @@ func (f *tarFile) add(e *entry) {
 	if f.index == nil {
 		f.index = make(map[string]*entry)
 	}
-	f.index[e.header.Name] = e
+	f.index[trimNamePrefix(e.header.Name)] = e
 	f.stream = append(f.stream, e)
 }
 
 func (f *tarFile) remove(name string) {
+	name = trimNamePrefix(name)
 	if f.index != nil {
 		delete(f.index, name)
 	}
 	var filtered []*entry
 	for _, e := range f.stream {
-		if e.header.Name == name {
+		if trimNamePrefix(e.header.Name) == name {
 			continue
 		}
 		filtered = append(filtered, e)
@@ -386,7 +434,7 @@ func (f *tarFile) get(name string) (e *entry, ok bool) {
 	if f.index == nil {
 		return nil, false
 	}
-	e, ok = f.index[name]
+	e, ok = f.index[trimNamePrefix(name)]
 	return
 }
 
@@ -431,19 +479,20 @@ func (tf *tempFiles) TempFile(dir, pattern string) (*os.File, error) {
 	return f, nil
 }
 
-func (tf *tempFiles) CleanupAll() (allErr error) {
+func (tf *tempFiles) CleanupAll() error {
 	tf.filesMu.Lock()
 	defer tf.filesMu.Unlock()
+	var allErr []error
 	for _, f := range tf.files {
 		if err := f.Close(); err != nil {
-			allErr = multierror.Append(allErr, err)
+			allErr = append(allErr, err)
 		}
 		if err := os.Remove(f.Name()); err != nil {
-			allErr = multierror.Append(allErr, err)
+			allErr = append(allErr, err)
 		}
 	}
 	tf.files = nil
-	return nil
+	return errorutil.Aggregate(allErr)
 }
 
 func newCountReader(r io.ReaderAt) (*countReader, error) {
diff --git a/vendor/github.com/containerd/stargz-snapshotter/estargz/errorutil/errors.go b/vendor/github.com/containerd/stargz-snapshotter/estargz/errorutil/errors.go
new file mode 100644
index 000000000..6de78b02d
--- /dev/null
+++ b/vendor/github.com/containerd/stargz-snapshotter/estargz/errorutil/errors.go
@@ -0,0 +1,40 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package errorutil
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+)
+
+// Aggregate combines a list of errors into a single new error.
+func Aggregate(errs []error) error {
+	switch len(errs) {
+	case 0:
+		return nil
+	case 1:
+		return errs[0]
+	default:
+		points := make([]string, len(errs)+1)
+		points[0] = fmt.Sprintf("%d error(s) occurred:", len(errs))
+		for i, err := range errs {
+			points[i+1] = fmt.Sprintf("* %s", err)
+		}
+		return errors.New(strings.Join(points, "\n\t"))
+	}
+}
diff --git a/vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go b/vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go
index e0d0b905b..b668af1cd 100644
--- a/vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go
+++ b/vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go
@@ -42,7 +42,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/hashicorp/go-multierror"
+	"github.com/containerd/stargz-snapshotter/estargz/errorutil"
 	digest "github.com/opencontainers/go-digest"
 	"github.com/pkg/errors"
 )
@@ -124,7 +124,7 @@ func (r *Reader) initFields() error {
 	gname := map[int]string{}
 	var lastRegEnt *TOCEntry
 	for _, ent := range r.toc.Entries {
-		ent.Name = strings.TrimPrefix(ent.Name, "./")
+		ent.Name = trimNamePrefix(ent.Name)
 		if ent.Type == "reg" {
 			lastRegEnt = ent
 		}
@@ -191,7 +191,7 @@ func (r *Reader) initFields() error {
 		pdir := r.getOrCreateDir(parentDir(name))
 		ent.NumLink++ // at least one name(ent.Name) references this entry.
 		if ent.Type == "hardlink" {
-			if org, ok := r.m[ent.LinkName]; ok {
+			if org, ok := r.m[trimNamePrefix(ent.LinkName)]; ok {
 				org.NumLink++ // original entry is referenced by this ent.Name.
 				ent = org
 			} else {
@@ -739,11 +739,13 @@ func footerBytes(tocOff int64) []byte {
 }
 
 func parseFooter(p []byte) (tocOffset int64, footerSize int64, rErr error) {
+	var allErr []error
+
 	tocOffset, err := parseEStargzFooter(p)
 	if err == nil {
 		return tocOffset, FooterSize, nil
 	}
-	rErr = multierror.Append(rErr, err)
+	allErr = append(allErr, err)
 
 	pad := len(p) - legacyFooterSize
 	if pad < 0 {
@@ -753,8 +755,7 @@ func parseFooter(p []byte) (tocOffset int64, footerSize int64, rErr error) {
 	if err == nil {
 		return tocOffset, legacyFooterSize, nil
 	}
-	rErr = multierror.Append(rErr, err)
-	return
+	return 0, 0, errorutil.Aggregate(append(allErr, err))
 }
 
 func parseEStargzFooter(p []byte) (tocOffset int64, err error) {
@@ -804,6 +805,11 @@ func formatModtime(t time.Time) string {
 	return t.UTC().Round(time.Second).Format(time.RFC3339)
 }
 
+func trimNamePrefix(name string) string {
+	// We don't use filepath.Clean here to preserve "/" suffix for directory entry.
+	return strings.TrimPrefix(name, "./")
+}
+
 // countWriter counts how many bytes have been written to its wrapped
 // io.Writer.
 type countWriter struct {
diff --git a/vendor/github.com/containerd/stargz-snapshotter/estargz/go.mod b/vendor/github.com/containerd/stargz-snapshotter/estargz/go.mod
index 0a7b29bab..a40070443 100644
--- a/vendor/github.com/containerd/stargz-snapshotter/estargz/go.mod
+++ b/vendor/github.com/containerd/stargz-snapshotter/estargz/go.mod
@@ -3,7 +3,6 @@ module github.com/containerd/stargz-snapshotter/estargz
 go 1.13
 
 require (
-	github.com/hashicorp/go-multierror v1.1.0
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/pkg/errors v0.9.1
 	golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
diff --git a/vendor/github.com/containerd/stargz-snapshotter/estargz/go.sum b/vendor/github.com/containerd/stargz-snapshotter/estargz/go.sum
index 44eb25c5f..d81890710 100644
--- a/vendor/github.com/containerd/stargz-snapshotter/estargz/go.sum
+++ b/vendor/github.com/containerd/stargz-snapshotter/estargz/go.sum
@@ -1,7 +1,3 @@
-github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
-github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
-github.com/hashicorp/go-multierror v1.1.0 h1:B9UzwGQJehnUY1yNrnwREHc3fGbC2xefo8g4TbElacI=
-github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+vmowP0z+KUhOZdA=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
diff --git a/vendor/github.com/hashicorp/errwrap/LICENSE b/vendor/github.com/hashicorp/errwrap/LICENSE
deleted file mode 100644
index c33dcc7c9..000000000
--- a/vendor/github.com/hashicorp/errwrap/LICENSE
+++ /dev/null
@@ -1,354 +0,0 @@
-Mozilla Public License, version 2.0
-
-1. Definitions
-
-1.1. “Contributor”
-
-     means each individual or legal entity that creates, contributes to the
-     creation of, or owns Covered Software.
-
-1.2. “Contributor Version”
-
-     means the combination of the Contributions of others (if any) used by a
-     Contributor and that particular Contributor’s Contribution.
-
-1.3. “Contribution”
-
-     means Covered Software of a particular Contributor.
-
-1.4. “Covered Software”
-
-     means Source Code Form to which the initial Contributor has attached the
-     notice in Exhibit A, the Executable Form of such Source Code Form, and
-     Modifications of such Source Code Form, in each case including portions
-     thereof.
-
-1.5. “Incompatible With Secondary Licenses”
-     means
-
-     a. that the initial Contributor has attached the notice described in
-        Exhibit B to the Covered Software; or
-
-     b. that the Covered Software was made available under the terms of version
-        1.1 or earlier of the License, but not also under the terms of a
-        Secondary License.
-
-1.6. “Executable Form”
-
-     means any form of the work other than Source Code Form.
-
-1.7. “Larger Work”
-
-     means a work that combines Covered Software with other material, in a separate
-     file or files, that is not Covered Software.
-
-1.8. “License”
-
-     means this document.
-
-1.9. “Licensable”
-
-     means having the right to grant, to the maximum extent possible, whether at the
-     time of the initial grant or subsequently, any and all of the rights conveyed by
-     this License.
-
-1.10. “Modifications”
-
-     means any of the following:
-
-     a. any file in Source Code Form that results from an addition to, deletion
-        from, or modification of the contents of Covered Software; or
-
-     b. any new file in Source Code Form that contains any Covered Software.
-
-1.11. “Patent Claims” of a Contributor
-
-      means any patent claim(s), including without limitation, method, process,
-      and apparatus claims, in any patent Licensable by such Contributor that
-      would be infringed, but for the grant of the License, by the making,
-      using, selling, offering for sale, having made, import, or transfer of
-      either its Contributions or its Contributor Version.
-
-1.12. “Secondary License”
-
-      means either the GNU General Public License, Version 2.0, the GNU Lesser
-      General Public License, Version 2.1, the GNU Affero General Public
-      License, Version 3.0, or any later versions of those licenses.
-
-1.13. “Source Code Form”
-
-      means the form of the work preferred for making modifications.
-
-1.14. “You” (or “Your”)
-
-      means an individual or a legal entity exercising rights under this
-      License. For legal entities, “You” includes any entity that controls, is
-      controlled by, or is under common control with You. For purposes of this
-      definition, “control” means (a) the power, direct or indirect, to cause
-      the direction or management of such entity, whether by contract or
-      otherwise, or (b) ownership of more than fifty percent (50%) of the
-      outstanding shares or beneficial ownership of such entity.
-
-
-2. License Grants and Conditions
-
-2.1. Grants
-
-     Each Contributor hereby grants You a world-wide, royalty-free,
-     non-exclusive license:
-
-     a. under intellectual property rights (other than patent or trademark)
-        Licensable by such Contributor to use, reproduce, make available,
-        modify, display, perform, distribute, and otherwise exploit its
-        Contributions, either on an unmodified basis, with Modifications, or as
-        part of a Larger Work; and
-
-     b. under Patent Claims of such Contributor to make, use, sell, offer for
-        sale, have made, import, and otherwise transfer either its Contributions
-        or its Contributor Version.
-
-2.2. Effective Date
-
-     The licenses granted in Section 2.1 with respect to any Contribution become
-     effective for each Contribution on the date the Contributor first distributes
-     such Contribution.
-
-2.3. Limitations on Grant Scope
-
-     The licenses granted in this Section 2 are the only rights granted under this
-     License. No additional rights or licenses will be implied from the distribution
-     or licensing of Covered Software under this License. Notwithstanding Section
-     2.1(b) above, no patent license is granted by a Contributor:
-
-     a. for any code that a Contributor has removed from Covered Software; or
-
-     b. for infringements caused by: (i) Your and any other third party’s
-        modifications of Covered Software, or (ii) the combination of its
-        Contributions with other software (except as part of its Contributor
-        Version); or
-
-     c. under Patent Claims infringed by Covered Software in the absence of its
-        Contributions.
-
-     This License does not grant any rights in the trademarks, service marks, or
-     logos of any Contributor (except as may be necessary to comply with the
-     notice requirements in Section 3.4).
-
-2.4. Subsequent Licenses
-
-     No Contributor makes additional grants as a result of Your choice to
-     distribute the Covered Software under a subsequent version of this License
-     (see Section 10.2) or under the terms of a Secondary License (if permitted
-     under the terms of Section 3.3).
-
-2.5. Representation
-
-     Each Contributor represents that the Contributor believes its Contributions
-     are its original creation(s) or it has sufficient rights to grant the
-     rights to its Contributions conveyed by this License.
-
-2.6. Fair Use
-
-     This License is not intended to limit any rights You have under applicable
-     copyright doctrines of fair use, fair dealing, or other equivalents.
-
-2.7. Conditions
-
-     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
-     Section 2.1.
-
-
-3. Responsibilities
-
-3.1. Distribution of Source Form
-
-     All distribution of Covered Software in Source Code Form, including any
-     Modifications that You create or to which You contribute, must be under the
-     terms of this License. You must inform recipients that the Source Code Form
-     of the Covered Software is governed by the terms of this License, and how
-     they can obtain a copy of this License. You may not attempt to alter or
-     restrict the recipients’ rights in the Source Code Form.
-
-3.2. Distribution of Executable Form
-
-     If You distribute Covered Software in Executable Form then:
-
-     a. such Covered Software must also be made available in Source Code Form,
-        as described in Section 3.1, and You must inform recipients of the
-        Executable Form how they can obtain a copy of such Source Code Form by
-        reasonable means in a timely manner, at a charge no more than the cost
-        of distribution to the recipient; and
-
-     b. You may distribute such Executable Form under the terms of this License,
-        or sublicense it under different terms, provided that the license for
-        the Executable Form does not attempt to limit or alter the recipients’
-        rights in the Source Code Form under this License.
-
-3.3. Distribution of a Larger Work
-
-     You may create and distribute a Larger Work under terms of Your choice,
-     provided that You also comply with the requirements of this License for the
-     Covered Software. If the Larger Work is a combination of Covered Software
-     with a work governed by one or more Secondary Licenses, and the Covered
-     Software is not Incompatible With Secondary Licenses, this License permits
-     You to additionally distribute such Covered Software under the terms of
-     such Secondary License(s), so that the recipient of the Larger Work may, at
-     their option, further distribute the Covered Software under the terms of
-     either this License or such Secondary License(s).
-
-3.4. Notices
-
-     You may not remove or alter the substance of any license notices (including
-     copyright notices, patent notices, disclaimers of warranty, or limitations
-     of liability) contained within the Source Code Form of the Covered
-     Software, except that You may alter any license notices to the extent
-     required to remedy known factual inaccuracies.
-
-3.5. Application of Additional Terms
-
-     You may choose to offer, and to charge a fee for, warranty, support,
-     indemnity or liability obligations to one or more recipients of Covered
-     Software. However, You may do so only on Your own behalf, and not on behalf
-     of any Contributor. You must make it absolutely clear that any such
-     warranty, support, indemnity, or liability obligation is offered by You
-     alone, and You hereby agree to indemnify every Contributor for any
-     liability incurred by such Contributor as a result of warranty, support,
-     indemnity or liability terms You offer. You may include additional
-     disclaimers of warranty and limitations of liability specific to any
-     jurisdiction.
-
-4. Inability to Comply Due to Statute or Regulation
-
-   If it is impossible for You to comply with any of the terms of this License
-   with respect to some or all of the Covered Software due to statute, judicial
-   order, or regulation then You must: (a) comply with the terms of this License
-   to the maximum extent possible; and (b) describe the limitations and the code
-   they affect. Such description must be placed in a text file included with all
-   distributions of the Covered Software under this License. Except to the
-   extent prohibited by statute or regulation, such description must be
-   sufficiently detailed for a recipient of ordinary skill to be able to
-   understand it.
-
-5. Termination
-
-5.1. The rights granted under this License will terminate automatically if You
-     fail to comply with any of its terms. However, if You become compliant,
-     then the rights granted under this License from a particular Contributor
-     are reinstated (a) provisionally, unless and until such Contributor
-     explicitly and finally terminates Your grants, and (b) on an ongoing basis,
-     if such Contributor fails to notify You of the non-compliance by some
-     reasonable means prior to 60 days after You have come back into compliance.
-     Moreover, Your grants from a particular Contributor are reinstated on an
-     ongoing basis if such Contributor notifies You of the non-compliance by
-     some reasonable means, this is the first time You have received notice of
-     non-compliance with this License from such Contributor, and You become
-     compliant prior to 30 days after Your receipt of the notice.
-
-5.2. If You initiate litigation against any entity by asserting a patent
-     infringement claim (excluding declaratory judgment actions, counter-claims,
-     and cross-claims) alleging that a Contributor Version directly or
-     indirectly infringes any patent, then the rights granted to You by any and
-     all Contributors for the Covered Software under Section 2.1 of this License
-     shall terminate.
-
-5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
-     license agreements (excluding distributors and resellers) which have been
-     validly granted by You or Your distributors under this License prior to
-     termination shall survive termination.
-
-6. Disclaimer of Warranty
-
-   Covered Software is provided under this License on an “as is” basis, without
-   warranty of any kind, either expressed, implied, or statutory, including,
-   without limitation, warranties that the Covered Software is free of defects,
-   merchantable, fit for a particular purpose or non-infringing. The entire
-   risk as to the quality and performance of the Covered Software is with You.
-   Should any Covered Software prove defective in any respect, You (not any
-   Contributor) assume the cost of any necessary servicing, repair, or
-   correction. This disclaimer of warranty constitutes an essential part of this
-   License. No use of  any Covered Software is authorized under this License
-   except under this disclaimer.
-
-7. Limitation of Liability
-
-   Under no circumstances and under no legal theory, whether tort (including
-   negligence), contract, or otherwise, shall any Contributor, or anyone who
-   distributes Covered Software as permitted above, be liable to You for any
-   direct, indirect, special, incidental, or consequential damages of any
-   character including, without limitation, damages for lost profits, loss of
-   goodwill, work stoppage, computer failure or malfunction, or any and all
-   other commercial damages or losses, even if such party shall have been
-   informed of the possibility of such damages. This limitation of liability
-   shall not apply to liability for death or personal injury resulting from such
-   party’s negligence to the extent applicable law prohibits such limitation.
-   Some jurisdictions do not allow the exclusion or limitation of incidental or
-   consequential damages, so this exclusion and limitation may not apply to You.
-
-8. Litigation
-
-   Any litigation relating to this License may be brought only in the courts of
-   a jurisdiction where the defendant maintains its principal place of business
-   and such litigation shall be governed by laws of that jurisdiction, without
-   reference to its conflict-of-law provisions. Nothing in this Section shall
-   prevent a party’s ability to bring cross-claims or counter-claims.
-
-9. Miscellaneous
-
-   This License represents the complete agreement concerning the subject matter
-   hereof. If any provision of this License is held to be unenforceable, such
-   provision shall be reformed only to the extent necessary to make it
-   enforceable. Any law or regulation which provides that the language of a
-   contract shall be construed against the drafter shall not be used to construe
-   this License against a Contributor.
-
-
-10. Versions of the License
-
-10.1. New Versions
-
-      Mozilla Foundation is the license steward. Except as provided in Section
-      10.3, no one other than the license steward has the right to modify or
-      publish new versions of this License. Each version will be given a
-      distinguishing version number.
-
-10.2. Effect of New Versions
-
-      You may distribute the Covered Software under the terms of the version of
-      the License under which You originally received the Covered Software, or
-      under the terms of any subsequent version published by the license
-      steward.
-
-10.3. Modified Versions
-
-      If you create software not governed by this License, and you want to
-      create a new license for such software, you may create and use a modified
-      version of this License if you rename the license and remove any
-      references to the name of the license steward (except to note that such
-      modified license differs from this License).
-
-10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses
-      If You choose to distribute Source Code Form that is Incompatible With
-      Secondary Licenses under the terms of this version of the License, the
-      notice described in Exhibit B of this License must be attached.
-
-Exhibit A - Source Code Form License Notice
-
-      This Source Code Form is subject to the
-      terms of the Mozilla Public License, v.
-      2.0. If a copy of the MPL was not
-      distributed with this file, You can
-      obtain one at
-      http://mozilla.org/MPL/2.0/.
-
-If it is not possible or desirable to put the notice in a particular file, then
-You may include the notice in a location (such as a LICENSE file in a relevant
-directory) where a recipient would be likely to look for such a notice.
-
-You may add additional accurate notices of copyright ownership.
-
-Exhibit B - “Incompatible With Secondary Licenses” Notice
-
-      This Source Code Form is “Incompatible
-      With Secondary Licenses”, as defined by
-      the Mozilla Public License, v. 2.0.
-
diff --git a/vendor/github.com/hashicorp/errwrap/README.md b/vendor/github.com/hashicorp/errwrap/README.md
deleted file mode 100644
index 444df08f8..000000000
--- a/vendor/github.com/hashicorp/errwrap/README.md
+++ /dev/null
@@ -1,89 +0,0 @@
-# errwrap
-
-`errwrap` is a package for Go that formalizes the pattern of wrapping errors
-and checking if an error contains another error.
-
-There is a common pattern in Go of taking a returned `error` value and
-then wrapping it (such as with `fmt.Errorf`) before returning it. The problem
-with this pattern is that you completely lose the original `error` structure.
-
-Arguably the _correct_ approach is that you should make a custom structure
-implementing the `error` interface, and have the original error as a field
-on that structure, such [as this example](http://golang.org/pkg/os/#PathError).
-This is a good approach, but you have to know the entire chain of possible
-rewrapping that happens, when you might just care about one.
-
-`errwrap` formalizes this pattern (it doesn't matter what approach you use
-above) by giving a single interface for wrapping errors, checking if a specific
-error is wrapped, and extracting that error.
-
-## Installation and Docs
-
-Install using `go get github.com/hashicorp/errwrap`.
-
-Full documentation is available at
-http://godoc.org/github.com/hashicorp/errwrap
-
-## Usage
-
-#### Basic Usage
-
-Below is a very basic example of its usage:
-
-```go
-// A function that always returns an error, but wraps it, like a real
-// function might.
-func tryOpen() error {
-	_, err := os.Open("/i/dont/exist")
-	if err != nil {
-		return errwrap.Wrapf("Doesn't exist: {{err}}", err)
-	}
-
-	return nil
-}
-
-func main() {
-	err := tryOpen()
-
-	// We can use the Contains helpers to check if an error contains
-	// another error. It is safe to do this with a nil error, or with
-	// an error that doesn't even use the errwrap package.
-	if errwrap.Contains(err, "does not exist") {
-		// Do something
-	}
-	if errwrap.ContainsType(err, new(os.PathError)) {
-		// Do something
-	}
-
-	// Or we can use the associated `Get` functions to just extract
-	// a specific error. This would return nil if that specific error doesn't
-	// exist.
-	perr := errwrap.GetType(err, new(os.PathError))
-}
-```
-
-#### Custom Types
-
-If you're already making custom types that properly wrap errors, then
-you can get all the functionality of `errwraps.Contains` and such by
-implementing the `Wrapper` interface with just one function. Example:
-
-```go
-type AppError {
-  Code ErrorCode
-  Err  error
-}
-
-func (e *AppError) WrappedErrors() []error {
-  return []error{e.Err}
-}
-```
-
-Now this works:
-
-```go
-err := &AppError{Err: fmt.Errorf("an error")}
-if errwrap.ContainsType(err, fmt.Errorf("")) {
-	// This will work!
-}
-```
diff --git a/vendor/github.com/hashicorp/errwrap/errwrap.go b/vendor/github.com/hashicorp/errwrap/errwrap.go
deleted file mode 100644
index 44e368e56..000000000
--- a/vendor/github.com/hashicorp/errwrap/errwrap.go
+++ /dev/null
@@ -1,178 +0,0 @@
-// Package errwrap implements methods to formalize error wrapping in Go.
-//
-// All of the top-level functions that take an `error` are built to be able
-// to take any error, not just wrapped errors. This allows you to use errwrap
-// without having to type-check and type-cast everywhere.
-package errwrap
-
-import (
-	"errors"
-	"reflect"
-	"strings"
-)
-
-// WalkFunc is the callback called for Walk.
-type WalkFunc func(error)
-
-// Wrapper is an interface that can be implemented by custom types to
-// have all the Contains, Get, etc. functions in errwrap work.
-//
-// When Walk reaches a Wrapper, it will call the callback for every
-// wrapped error in addition to the wrapper itself. Since all the top-level
-// functions in errwrap use Walk, this means that all those functions work
-// with your custom type.
-type Wrapper interface {
-	WrappedErrors() []error
-}
-
-// Wrap defines that outer wraps inner, returning an error type that
-// can be cleanly used with the other methods in this package, such as
-// Contains, GetAll, etc.
-//
-// This function won't modify the error message at all (the outer message
-// will be used).
-func Wrap(outer, inner error) error {
-	return &wrappedError{
-		Outer: outer,
-		Inner: inner,
-	}
-}
-
-// Wrapf wraps an error with a formatting message. This is similar to using
-// `fmt.Errorf` to wrap an error. If you're using `fmt.Errorf` to wrap
-// errors, you should replace it with this.
-//
-// format is the format of the error message. The string '{{err}}' will
-// be replaced with the original error message.
-//
-// Deprecated: Use fmt.Errorf()
-func Wrapf(format string, err error) error {
-	outerMsg := "<nil>"
-	if err != nil {
-		outerMsg = err.Error()
-	}
-
-	outer := errors.New(strings.Replace(
-		format, "{{err}}", outerMsg, -1))
-
-	return Wrap(outer, err)
-}
-
-// Contains checks if the given error contains an error with the
-// message msg. If err is not a wrapped error, this will always return
-// false unless the error itself happens to match this msg.
-func Contains(err error, msg string) bool {
-	return len(GetAll(err, msg)) > 0
-}
-
-// ContainsType checks if the given error contains an error with
-// the same concrete type as v. If err is not a wrapped error, this will
-// check the err itself.
-func ContainsType(err error, v interface{}) bool {
-	return len(GetAllType(err, v)) > 0
-}
-
-// Get is the same as GetAll but returns the deepest matching error.
-func Get(err error, msg string) error {
-	es := GetAll(err, msg)
-	if len(es) > 0 {
-		return es[len(es)-1]
-	}
-
-	return nil
-}
-
-// GetType is the same as GetAllType but returns the deepest matching error.
-func GetType(err error, v interface{}) error {
-	es := GetAllType(err, v)
-	if len(es) > 0 {
-		return es[len(es)-1]
-	}
-
-	return nil
-}
-
-// GetAll gets all the errors that might be wrapped in err with the
-// given message. The order of the errors is such that the outermost
-// matching error (the most recent wrap) is index zero, and so on.
-func GetAll(err error, msg string) []error {
-	var result []error
-
-	Walk(err, func(err error) {
-		if err.Error() == msg {
-			result = append(result, err)
-		}
-	})
-
-	return result
-}
-
-// GetAllType gets all the errors that are the same type as v.
-//
-// The order of the return value is the same as described in GetAll.
-func GetAllType(err error, v interface{}) []error {
-	var result []error
-
-	var search string
-	if v != nil {
-		search = reflect.TypeOf(v).String()
-	}
-	Walk(err, func(err error) {
-		var needle string
-		if err != nil {
-			needle = reflect.TypeOf(err).String()
-		}
-
-		if needle == search {
-			result = append(result, err)
-		}
-	})
-
-	return result
-}
-
-// Walk walks all the wrapped errors in err and calls the callback. If
-// err isn't a wrapped error, this will be called once for err. If err
-// is a wrapped error, the callback will be called for both the wrapper
-// that implements error as well as the wrapped error itself.
-func Walk(err error, cb WalkFunc) {
-	if err == nil {
-		return
-	}
-
-	switch e := err.(type) {
-	case *wrappedError:
-		cb(e.Outer)
-		Walk(e.Inner, cb)
-	case Wrapper:
-		cb(err)
-
-		for _, err := range e.WrappedErrors() {
-			Walk(err, cb)
-		}
-	case interface{ Unwrap() error }:
-		cb(err)
-		Walk(e.Unwrap(), cb)
-	default:
-		cb(err)
-	}
-}
-
-// wrappedError is an implementation of error that has both the
-// outer and inner errors.
-type wrappedError struct {
-	Outer error
-	Inner error
-}
-
-func (w *wrappedError) Error() string {
-	return w.Outer.Error()
-}
-
-func (w *wrappedError) WrappedErrors() []error {
-	return []error{w.Outer, w.Inner}
-}
-
-func (w *wrappedError) Unwrap() error {
-	return w.Inner
-}
diff --git a/vendor/github.com/hashicorp/errwrap/go.mod b/vendor/github.com/hashicorp/errwrap/go.mod
deleted file mode 100644
index c9b84022c..000000000
--- a/vendor/github.com/hashicorp/errwrap/go.mod
+++ /dev/null
@@ -1 +0,0 @@
-module github.com/hashicorp/errwrap
diff --git a/vendor/github.com/hashicorp/go-multierror/.travis.yml b/vendor/github.com/hashicorp/go-multierror/.travis.yml
deleted file mode 100644
index 24b80388f..000000000
--- a/vendor/github.com/hashicorp/go-multierror/.travis.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-sudo: false
-
-language: go
-
-go:
-  - 1.x
-
-branches:
-  only:
-    - master
-
-script: env GO111MODULE=on make test testrace
diff --git a/vendor/github.com/hashicorp/go-multierror/LICENSE b/vendor/github.com/hashicorp/go-multierror/LICENSE
deleted file mode 100644
index 82b4de97c..000000000
--- a/vendor/github.com/hashicorp/go-multierror/LICENSE
+++ /dev/null
@@ -1,353 +0,0 @@
-Mozilla Public License, version 2.0
-
-1. Definitions
-
-1.1. “Contributor”
-
-     means each individual or legal entity that creates, contributes to the
-     creation of, or owns Covered Software.
-
-1.2. “Contributor Version”
-
-     means the combination of the Contributions of others (if any) used by a
-     Contributor and that particular Contributor’s Contribution.
-
-1.3. “Contribution”
-
-     means Covered Software of a particular Contributor.
-
-1.4. “Covered Software”
-
-     means Source Code Form to which the initial Contributor has attached the
-     notice in Exhibit A, the Executable Form of such Source Code Form, and
-     Modifications of such Source Code Form, in each case including portions
-     thereof.
-
-1.5. “Incompatible With Secondary Licenses”
-     means
-
-     a. that the initial Contributor has attached the notice described in
-        Exhibit B to the Covered Software; or
-
-     b. that the Covered Software was made available under the terms of version
-        1.1 or earlier of the License, but not also under the terms of a
-        Secondary License.
-
-1.6. “Executable Form”
-
-     means any form of the work other than Source Code Form.
-
-1.7. “Larger Work”
-
-     means a work that combines Covered Software with other material, in a separate
-     file or files, that is not Covered Software.
-
-1.8. “License”
-
-     means this document.
-
-1.9. “Licensable”
-
-     means having the right to grant, to the maximum extent possible, whether at the
-     time of the initial grant or subsequently, any and all of the rights conveyed by
-     this License.
-
-1.10. “Modifications”
-
-     means any of the following:
-
-     a. any file in Source Code Form that results from an addition to, deletion
-        from, or modification of the contents of Covered Software; or
-
-     b. any new file in Source Code Form that contains any Covered Software.
-
-1.11. “Patent Claims” of a Contributor
-
-      means any patent claim(s), including without limitation, method, process,
-      and apparatus claims, in any patent Licensable by such Contributor that
-      would be infringed, but for the grant of the License, by the making,
-      using, selling, offering for sale, having made, import, or transfer of
-      either its Contributions or its Contributor Version.
-
-1.12. “Secondary License”
-
-      means either the GNU General Public License, Version 2.0, the GNU Lesser
-      General Public License, Version 2.1, the GNU Affero General Public
-      License, Version 3.0, or any later versions of those licenses.
-
-1.13. “Source Code Form”
-
-      means the form of the work preferred for making modifications.
-
-1.14. “You” (or “Your”)
-
-      means an individual or a legal entity exercising rights under this
-      License. For legal entities, “You” includes any entity that controls, is
-      controlled by, or is under common control with You. For purposes of this
-      definition, “control” means (a) the power, direct or indirect, to cause
-      the direction or management of such entity, whether by contract or
-      otherwise, or (b) ownership of more than fifty percent (50%) of the
-      outstanding shares or beneficial ownership of such entity.
-
-
-2. License Grants and Conditions
-
-2.1. Grants
-
-     Each Contributor hereby grants You a world-wide, royalty-free,
-     non-exclusive license:
-
-     a. under intellectual property rights (other than patent or trademark)
-        Licensable by such Contributor to use, reproduce, make available,
-        modify, display, perform, distribute, and otherwise exploit its
-        Contributions, either on an unmodified basis, with Modifications, or as
-        part of a Larger Work; and
-
-     b. under Patent Claims of such Contributor to make, use, sell, offer for
-        sale, have made, import, and otherwise transfer either its Contributions
-        or its Contributor Version.
-
-2.2. Effective Date
-
-     The licenses granted in Section 2.1 with respect to any Contribution become
-     effective for each Contribution on the date the Contributor first distributes
-     such Contribution.
-
-2.3. Limitations on Grant Scope
-
-     The licenses granted in this Section 2 are the only rights granted under this
-     License. No additional rights or licenses will be implied from the distribution
-     or licensing of Covered Software under this License. Notwithstanding Section
-     2.1(b) above, no patent license is granted by a Contributor:
-
-     a. for any code that a Contributor has removed from Covered Software; or
-
-     b. for infringements caused by: (i) Your and any other third party’s
-        modifications of Covered Software, or (ii) the combination of its
-        Contributions with other software (except as part of its Contributor
-        Version); or
-
-     c. under Patent Claims infringed by Covered Software in the absence of its
-        Contributions.
-
-     This License does not grant any rights in the trademarks, service marks, or
-     logos of any Contributor (except as may be necessary to comply with the
-     notice requirements in Section 3.4).
-
-2.4. Subsequent Licenses
-
-     No Contributor makes additional grants as a result of Your choice to
-     distribute the Covered Software under a subsequent version of this License
-     (see Section 10.2) or under the terms of a Secondary License (if permitted
-     under the terms of Section 3.3).
-
-2.5. Representation
-
-     Each Contributor represents that the Contributor believes its Contributions
-     are its original creation(s) or it has sufficient rights to grant the
-     rights to its Contributions conveyed by this License.
-
-2.6. Fair Use
-
-     This License is not intended to limit any rights You have under applicable
-     copyright doctrines of fair use, fair dealing, or other equivalents.
-
-2.7. Conditions
-
-     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
-     Section 2.1.
-
-
-3. Responsibilities
-
-3.1. Distribution of Source Form
-
-     All distribution of Covered Software in Source Code Form, including any
-     Modifications that You create or to which You contribute, must be under the
-     terms of this License. You must inform recipients that the Source Code Form
-     of the Covered Software is governed by the terms of this License, and how
-     they can obtain a copy of this License. You may not attempt to alter or
-     restrict the recipients’ rights in the Source Code Form.
-
-3.2. Distribution of Executable Form
-
-     If You distribute Covered Software in Executable Form then:
-
-     a. such Covered Software must also be made available in Source Code Form,
-        as described in Section 3.1, and You must inform recipients of the
-        Executable Form how they can obtain a copy of such Source Code Form by
-        reasonable means in a timely manner, at a charge no more than the cost
-        of distribution to the recipient; and
-
-     b. You may distribute such Executable Form under the terms of this License,
-        or sublicense it under different terms, provided that the license for
-        the Executable Form does not attempt to limit or alter the recipients’
-        rights in the Source Code Form under this License.
-
-3.3. Distribution of a Larger Work
-
-     You may create and distribute a Larger Work under terms of Your choice,
-     provided that You also comply with the requirements of this License for the
-     Covered Software. If the Larger Work is a combination of Covered Software
-     with a work governed by one or more Secondary Licenses, and the Covered
-     Software is not Incompatible With Secondary Licenses, this License permits
-     You to additionally distribute such Covered Software under the terms of
-     such Secondary License(s), so that the recipient of the Larger Work may, at
-     their option, further distribute the Covered Software under the terms of
-     either this License or such Secondary License(s).
-
-3.4. Notices
-
-     You may not remove or alter the substance of any license notices (including
-     copyright notices, patent notices, disclaimers of warranty, or limitations
-     of liability) contained within the Source Code Form of the Covered
-     Software, except that You may alter any license notices to the extent
-     required to remedy known factual inaccuracies.
-
-3.5. Application of Additional Terms
-
-     You may choose to offer, and to charge a fee for, warranty, support,
-     indemnity or liability obligations to one or more recipients of Covered
-     Software. However, You may do so only on Your own behalf, and not on behalf
-     of any Contributor. You must make it absolutely clear that any such
-     warranty, support, indemnity, or liability obligation is offered by You
-     alone, and You hereby agree to indemnify every Contributor for any
-     liability incurred by such Contributor as a result of warranty, support,
-     indemnity or liability terms You offer. You may include additional
-     disclaimers of warranty and limitations of liability specific to any
-     jurisdiction.
-
-4. Inability to Comply Due to Statute or Regulation
-
-   If it is impossible for You to comply with any of the terms of this License
-   with respect to some or all of the Covered Software due to statute, judicial
-   order, or regulation then You must: (a) comply with the terms of this License
-   to the maximum extent possible; and (b) describe the limitations and the code
-   they affect. Such description must be placed in a text file included with all
-   distributions of the Covered Software under this License. Except to the
-   extent prohibited by statute or regulation, such description must be
-   sufficiently detailed for a recipient of ordinary skill to be able to
-   understand it.
-
-5. Termination
-
-5.1. The rights granted under this License will terminate automatically if You
-     fail to comply with any of its terms. However, if You become compliant,
-     then the rights granted under this License from a particular Contributor
-     are reinstated (a) provisionally, unless and until such Contributor
-     explicitly and finally terminates Your grants, and (b) on an ongoing basis,
-     if such Contributor fails to notify You of the non-compliance by some
-     reasonable means prior to 60 days after You have come back into compliance.
-     Moreover, Your grants from a particular Contributor are reinstated on an
-     ongoing basis if such Contributor notifies You of the non-compliance by
-     some reasonable means, this is the first time You have received notice of
-     non-compliance with this License from such Contributor, and You become
-     compliant prior to 30 days after Your receipt of the notice.
-
-5.2. If You initiate litigation against any entity by asserting a patent
-     infringement claim (excluding declaratory judgment actions, counter-claims,
-     and cross-claims) alleging that a Contributor Version directly or
-     indirectly infringes any patent, then the rights granted to You by any and
-     all Contributors for the Covered Software under Section 2.1 of this License
-     shall terminate.
-
-5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
-     license agreements (excluding distributors and resellers) which have been
-     validly granted by You or Your distributors under this License prior to
-     termination shall survive termination.
-
-6. Disclaimer of Warranty
-
-   Covered Software is provided under this License on an “as is” basis, without
-   warranty of any kind, either expressed, implied, or statutory, including,
-   without limitation, warranties that the Covered Software is free of defects,
-   merchantable, fit for a particular purpose or non-infringing. The entire
-   risk as to the quality and performance of the Covered Software is with You.
-   Should any Covered Software prove defective in any respect, You (not any
-   Contributor) assume the cost of any necessary servicing, repair, or
-   correction. This disclaimer of warranty constitutes an essential part of this
-   License. No use of  any Covered Software is authorized under this License
-   except under this disclaimer.
-
-7. Limitation of Liability
-
-   Under no circumstances and under no legal theory, whether tort (including
-   negligence), contract, or otherwise, shall any Contributor, or anyone who
-   distributes Covered Software as permitted above, be liable to You for any
-   direct, indirect, special, incidental, or consequential damages of any
-   character including, without limitation, damages for lost profits, loss of
-   goodwill, work stoppage, computer failure or malfunction, or any and all
-   other commercial damages or losses, even if such party shall have been
-   informed of the possibility of such damages. This limitation of liability
-   shall not apply to liability for death or personal injury resulting from such
-   party’s negligence to the extent applicable law prohibits such limitation.
-   Some jurisdictions do not allow the exclusion or limitation of incidental or
-   consequential damages, so this exclusion and limitation may not apply to You.
-
-8. Litigation
-
-   Any litigation relating to this License may be brought only in the courts of
-   a jurisdiction where the defendant maintains its principal place of business
-   and such litigation shall be governed by laws of that jurisdiction, without
-   reference to its conflict-of-law provisions. Nothing in this Section shall
-   prevent a party’s ability to bring cross-claims or counter-claims.
-
-9. Miscellaneous
-
-   This License represents the complete agreement concerning the subject matter
-   hereof. If any provision of this License is held to be unenforceable, such
-   provision shall be reformed only to the extent necessary to make it
-   enforceable. Any law or regulation which provides that the language of a
-   contract shall be construed against the drafter shall not be used to construe
-   this License against a Contributor.
-
-
-10. Versions of the License
-
-10.1. New Versions
-
-      Mozilla Foundation is the license steward. Except as provided in Section
-      10.3, no one other than the license steward has the right to modify or
-      publish new versions of this License. Each version will be given a
-      distinguishing version number.
-
-10.2. Effect of New Versions
-
-      You may distribute the Covered Software under the terms of the version of
-      the License under which You originally received the Covered Software, or
-      under the terms of any subsequent version published by the license
-      steward.
-
-10.3. Modified Versions
-
-      If you create software not governed by this License, and you want to
-      create a new license for such software, you may create and use a modified
-      version of this License if you rename the license and remove any
-      references to the name of the license steward (except to note that such
-      modified license differs from this License).
-
-10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses
-      If You choose to distribute Source Code Form that is Incompatible With
-      Secondary Licenses under the terms of this version of the License, the
-      notice described in Exhibit B of this License must be attached.
-
-Exhibit A - Source Code Form License Notice
-
-      This Source Code Form is subject to the
-      terms of the Mozilla Public License, v.
-      2.0. If a copy of the MPL was not
-      distributed with this file, You can
-      obtain one at
-      http://mozilla.org/MPL/2.0/.
-
-If it is not possible or desirable to put the notice in a particular file, then
-You may include the notice in a location (such as a LICENSE file in a relevant
-directory) where a recipient would be likely to look for such a notice.
-
-You may add additional accurate notices of copyright ownership.
-
-Exhibit B - “Incompatible With Secondary Licenses” Notice
-
-      This Source Code Form is “Incompatible
-      With Secondary Licenses”, as defined by
-      the Mozilla Public License, v. 2.0.
diff --git a/vendor/github.com/hashicorp/go-multierror/Makefile b/vendor/github.com/hashicorp/go-multierror/Makefile
deleted file mode 100644
index b97cd6ed0..000000000
--- a/vendor/github.com/hashicorp/go-multierror/Makefile
+++ /dev/null
@@ -1,31 +0,0 @@
-TEST?=./...
-
-default: test
-
-# test runs the test suite and vets the code.
-test: generate
-	@echo "==> Running tests..."
-	@go list $(TEST) \
-		| grep -v "/vendor/" \
-		| xargs -n1 go test -timeout=60s -parallel=10 ${TESTARGS}
-
-# testrace runs the race checker
-testrace: generate
-	@echo "==> Running tests (race)..."
-	@go list $(TEST) \
-		| grep -v "/vendor/" \
-		| xargs -n1 go test -timeout=60s -race ${TESTARGS}
-
-# updatedeps installs all the dependencies needed to run and build.
-updatedeps:
-	@sh -c "'${CURDIR}/scripts/deps.sh' '${NAME}'"
-
-# generate runs `go generate` to build the dynamically generated source files.
-generate:
-	@echo "==> Generating..."
-	@find . -type f -name '.DS_Store' -delete
-	@go list ./... \
-		| grep -v "/vendor/" \
-		| xargs -n1 go generate
-
-.PHONY: default test testrace updatedeps generate
diff --git a/vendor/github.com/hashicorp/go-multierror/README.md b/vendor/github.com/hashicorp/go-multierror/README.md
deleted file mode 100644
index e92fa614c..000000000
--- a/vendor/github.com/hashicorp/go-multierror/README.md
+++ /dev/null
@@ -1,131 +0,0 @@
-# go-multierror
-
-[![Build Status](http://img.shields.io/travis/hashicorp/go-multierror.svg?style=flat-square)][travis]
-[![Go Documentation](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)][godocs]
-
-[travis]: https://travis-ci.org/hashicorp/go-multierror
-[godocs]: https://godoc.org/github.com/hashicorp/go-multierror
-
-`go-multierror` is a package for Go that provides a mechanism for
-representing a list of `error` values as a single `error`.
-
-This allows a function in Go to return an `error` that might actually
-be a list of errors. If the caller knows this, they can unwrap the
-list and access the errors. If the caller doesn't know, the error
-formats to a nice human-readable format.
-
-`go-multierror` is fully compatible with the Go standard library
-[errors](https://golang.org/pkg/errors/) package, including the
-functions `As`, `Is`, and `Unwrap`. This provides a standardized approach
-for introspecting on error values.
-
-## Installation and Docs
-
-Install using `go get github.com/hashicorp/go-multierror`.
-
-Full documentation is available at
-http://godoc.org/github.com/hashicorp/go-multierror
-
-## Usage
-
-go-multierror is easy to use and purposely built to be unobtrusive in
-existing Go applications/libraries that may not be aware of it.
-
-**Building a list of errors**
-
-The `Append` function is used to create a list of errors. This function
-behaves a lot like the Go built-in `append` function: it doesn't matter
-if the first argument is nil, a `multierror.Error`, or any other `error`,
-the function behaves as you would expect.
-
-```go
-var result error
-
-if err := step1(); err != nil {
-	result = multierror.Append(result, err)
-}
-if err := step2(); err != nil {
-	result = multierror.Append(result, err)
-}
-
-return result
-```
-
-**Customizing the formatting of the errors**
-
-By specifying a custom `ErrorFormat`, you can customize the format
-of the `Error() string` function:
-
-```go
-var result *multierror.Error
-
-// ... accumulate errors here, maybe using Append
-
-if result != nil {
-	result.ErrorFormat = func([]error) string {
-		return "errors!"
-	}
-}
-```
-
-**Accessing the list of errors**
-
-`multierror.Error` implements `error` so if the caller doesn't know about
-multierror, it will work just fine. But if you're aware a multierror might
-be returned, you can use type switches to access the list of errors:
-
-```go
-if err := something(); err != nil {
-	if merr, ok := err.(*multierror.Error); ok {
-		// Use merr.Errors
-	}
-}
-```
-
-You can also use the standard [`errors.Unwrap`](https://golang.org/pkg/errors/#Unwrap)
-function. This will continue to unwrap into subsequent errors until none exist.
-
-**Extracting an error**
-
-The standard library [`errors.As`](https://golang.org/pkg/errors/#As)
-function can be used directly with a multierror to extract a specific error:
-
-```go
-// Assume err is a multierror value
-err := somefunc()
-
-// We want to know if "err" has a "RichErrorType" in it and extract it.
-var errRich RichErrorType
-if errors.As(err, &errRich) {
-	// It has it, and now errRich is populated.
-}
-```
-
-**Checking for an exact error value**
-
-Some errors are returned as exact errors such as the [`ErrNotExist`](https://golang.org/pkg/os/#pkg-variables)
-error in the `os` package. You can check if this error is present by using
-the standard [`errors.Is`](https://golang.org/pkg/errors/#Is) function.
-
-```go
-// Assume err is a multierror value
-err := somefunc()
-if errors.Is(err, os.ErrNotExist) {
-	// err contains os.ErrNotExist
-}
-```
-
-**Returning a multierror only if there are errors**
-
-If you build a `multierror.Error`, you can use the `ErrorOrNil` function
-to return an `error` implementation only if there are errors to return:
-
-```go
-var result *multierror.Error
-
-// ... accumulate errors here
-
-// Return the `error` only if errors were added to the multierror, otherwise
-// return nil since there are no errors.
-return result.ErrorOrNil()
-```
diff --git a/vendor/github.com/hashicorp/go-multierror/append.go b/vendor/github.com/hashicorp/go-multierror/append.go
deleted file mode 100644
index 775b6e753..000000000
--- a/vendor/github.com/hashicorp/go-multierror/append.go
+++ /dev/null
@@ -1,41 +0,0 @@
-package multierror
-
-// Append is a helper function that will append more errors
-// onto an Error in order to create a larger multi-error.
-//
-// If err is not a multierror.Error, then it will be turned into
-// one. If any of the errs are multierr.Error, they will be flattened
-// one level into err.
-func Append(err error, errs ...error) *Error {
-	switch err := err.(type) {
-	case *Error:
-		// Typed nils can reach here, so initialize if we are nil
-		if err == nil {
-			err = new(Error)
-		}
-
-		// Go through each error and flatten
-		for _, e := range errs {
-			switch e := e.(type) {
-			case *Error:
-				if e != nil {
-					err.Errors = append(err.Errors, e.Errors...)
-				}
-			default:
-				if e != nil {
-					err.Errors = append(err.Errors, e)
-				}
-			}
-		}
-
-		return err
-	default:
-		newErrs := make([]error, 0, len(errs)+1)
-		if err != nil {
-			newErrs = append(newErrs, err)
-		}
-		newErrs = append(newErrs, errs...)
-
-		return Append(&Error{}, newErrs...)
-	}
-}
diff --git a/vendor/github.com/hashicorp/go-multierror/flatten.go b/vendor/github.com/hashicorp/go-multierror/flatten.go
deleted file mode 100644
index aab8e9abe..000000000
--- a/vendor/github.com/hashicorp/go-multierror/flatten.go
+++ /dev/null
@@ -1,26 +0,0 @@
-package multierror
-
-// Flatten flattens the given error, merging any *Errors together into
-// a single *Error.
-func Flatten(err error) error {
-	// If it isn't an *Error, just return the error as-is
-	if _, ok := err.(*Error); !ok {
-		return err
-	}
-
-	// Otherwise, make the result and flatten away!
-	flatErr := new(Error)
-	flatten(err, flatErr)
-	return flatErr
-}
-
-func flatten(err error, flatErr *Error) {
-	switch err := err.(type) {
-	case *Error:
-		for _, e := range err.Errors {
-			flatten(e, flatErr)
-		}
-	default:
-		flatErr.Errors = append(flatErr.Errors, err)
-	}
-}
diff --git a/vendor/github.com/hashicorp/go-multierror/format.go b/vendor/github.com/hashicorp/go-multierror/format.go
deleted file mode 100644
index 47f13c49a..000000000
--- a/vendor/github.com/hashicorp/go-multierror/format.go
+++ /dev/null
@@ -1,27 +0,0 @@
-package multierror
-
-import (
-	"fmt"
-	"strings"
-)
-
-// ErrorFormatFunc is a function callback that is called by Error to
-// turn the list of errors into a string.
-type ErrorFormatFunc func([]error) string
-
-// ListFormatFunc is a basic formatter that outputs the number of errors
-// that occurred along with a bullet point list of the errors.
-func ListFormatFunc(es []error) string {
-	if len(es) == 1 {
-		return fmt.Sprintf("1 error occurred:\n\t* %s\n\n", es[0])
-	}
-
-	points := make([]string, len(es))
-	for i, err := range es {
-		points[i] = fmt.Sprintf("* %s", err)
-	}
-
-	return fmt.Sprintf(
-		"%d errors occurred:\n\t%s\n\n",
-		len(es), strings.Join(points, "\n\t"))
-}
diff --git a/vendor/github.com/hashicorp/go-multierror/go.mod b/vendor/github.com/hashicorp/go-multierror/go.mod
deleted file mode 100644
index 0afe8e6f9..000000000
--- a/vendor/github.com/hashicorp/go-multierror/go.mod
+++ /dev/null
@@ -1,5 +0,0 @@
-module github.com/hashicorp/go-multierror
-
-go 1.14
-
-require github.com/hashicorp/errwrap v1.0.0
diff --git a/vendor/github.com/hashicorp/go-multierror/go.sum b/vendor/github.com/hashicorp/go-multierror/go.sum
deleted file mode 100644
index e8238e9ec..000000000
--- a/vendor/github.com/hashicorp/go-multierror/go.sum
+++ /dev/null
@@ -1,2 +0,0 @@
-github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
-github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
diff --git a/vendor/github.com/hashicorp/go-multierror/group.go b/vendor/github.com/hashicorp/go-multierror/group.go
deleted file mode 100644
index 9c29efb7f..000000000
--- a/vendor/github.com/hashicorp/go-multierror/group.go
+++ /dev/null
@@ -1,38 +0,0 @@
-package multierror
-
-import "sync"
-
-// Group is a collection of goroutines which return errors that need to be
-// coalesced.
-type Group struct {
-	mutex sync.Mutex
-	err   *Error
-	wg    sync.WaitGroup
-}
-
-// Go calls the given function in a new goroutine.
-//
-// If the function returns an error it is added to the group multierror which
-// is returned by Wait.
-func (g *Group) Go(f func() error) {
-	g.wg.Add(1)
-
-	go func() {
-		defer g.wg.Done()
-
-		if err := f(); err != nil {
-			g.mutex.Lock()
-			g.err = Append(g.err, err)
-			g.mutex.Unlock()
-		}
-	}()
-}
-
-// Wait blocks until all function calls from the Go method have returned, then
-// returns the multierror.
-func (g *Group) Wait() *Error {
-	g.wg.Wait()
-	g.mutex.Lock()
-	defer g.mutex.Unlock()
-	return g.err
-}
diff --git a/vendor/github.com/hashicorp/go-multierror/multierror.go b/vendor/github.com/hashicorp/go-multierror/multierror.go
deleted file mode 100644
index d05dd9269..000000000
--- a/vendor/github.com/hashicorp/go-multierror/multierror.go
+++ /dev/null
@@ -1,118 +0,0 @@
-package multierror
-
-import (
-	"errors"
-	"fmt"
-)
-
-// Error is an error type to track multiple errors. This is used to
-// accumulate errors in cases and return them as a single "error".
-type Error struct {
-	Errors      []error
-	ErrorFormat ErrorFormatFunc
-}
-
-func (e *Error) Error() string {
-	fn := e.ErrorFormat
-	if fn == nil {
-		fn = ListFormatFunc
-	}
-
-	return fn(e.Errors)
-}
-
-// ErrorOrNil returns an error interface if this Error represents
-// a list of errors, or returns nil if the list of errors is empty. This
-// function is useful at the end of accumulation to make sure that the value
-// returned represents the existence of errors.
-func (e *Error) ErrorOrNil() error {
-	if e == nil {
-		return nil
-	}
-	if len(e.Errors) == 0 {
-		return nil
-	}
-
-	return e
-}
-
-func (e *Error) GoString() string {
-	return fmt.Sprintf("*%#v", *e)
-}
-
-// WrappedErrors returns the list of errors that this Error is wrapping.
-// It is an implementation of the errwrap.Wrapper interface so that
-// multierror.Error can be used with that library.
-//
-// This method is not safe to be called concurrently and is no different
-// than accessing the Errors field directly. It is implemented only to
-// satisfy the errwrap.Wrapper interface.
-func (e *Error) WrappedErrors() []error {
-	return e.Errors
-}
-
-// Unwrap returns an error from Error (or nil if there are no errors).
-// This error returned will further support Unwrap to get the next error,
-// etc. The order will match the order of Errors in the multierror.Error
-// at the time of calling.
-//
-// The resulting error supports errors.As/Is/Unwrap so you can continue
-// to use the stdlib errors package to introspect further.
-//
-// This will perform a shallow copy of the errors slice. Any errors appended
-// to this error after calling Unwrap will not be available until a new
-// Unwrap is called on the multierror.Error.
-func (e *Error) Unwrap() error {
-	// If we have no errors then we do nothing
-	if e == nil || len(e.Errors) == 0 {
-		return nil
-	}
-
-	// If we have exactly one error, we can just return that directly.
-	if len(e.Errors) == 1 {
-		return e.Errors[0]
-	}
-
-	// Shallow copy the slice
-	errs := make([]error, len(e.Errors))
-	copy(errs, e.Errors)
-	return chain(errs)
-}
-
-// chain implements the interfaces necessary for errors.Is/As/Unwrap to
-// work in a deterministic way with multierror. A chain tracks a list of
-// errors while accounting for the current represented error. This lets
-// Is/As be meaningful.
-//
-// Unwrap returns the next error. In the cleanest form, Unwrap would return
-// the wrapped error here but we can't do that if we want to properly
-// get access to all the errors. Instead, users are recommended to use
-// Is/As to get the correct error type out.
-//
-// Precondition: []error is non-empty (len > 0)
-type chain []error
-
-// Error implements the error interface
-func (e chain) Error() string {
-	return e[0].Error()
-}
-
-// Unwrap implements errors.Unwrap by returning the next error in the
-// chain or nil if there are no more errors.
-func (e chain) Unwrap() error {
-	if len(e) == 1 {
-		return nil
-	}
-
-	return e[1:]
-}
-
-// As implements errors.As by attempting to map to the current value.
-func (e chain) As(target interface{}) bool {
-	return errors.As(e[0], target)
-}
-
-// Is implements errors.Is by comparing the current value directly.
-func (e chain) Is(target error) bool {
-	return errors.Is(e[0], target)
-}
diff --git a/vendor/github.com/hashicorp/go-multierror/prefix.go b/vendor/github.com/hashicorp/go-multierror/prefix.go
deleted file mode 100644
index 5c477abe4..000000000
--- a/vendor/github.com/hashicorp/go-multierror/prefix.go
+++ /dev/null
@@ -1,37 +0,0 @@
-package multierror
-
-import (
-	"fmt"
-
-	"github.com/hashicorp/errwrap"
-)
-
-// Prefix is a helper function that will prefix some text
-// to the given error. If the error is a multierror.Error, then
-// it will be prefixed to each wrapped error.
-//
-// This is useful to use when appending multiple multierrors
-// together in order to give better scoping.
-func Prefix(err error, prefix string) error {
-	if err == nil {
-		return nil
-	}
-
-	format := fmt.Sprintf("%s {{err}}", prefix)
-	switch err := err.(type) {
-	case *Error:
-		// Typed nils can reach here, so initialize if we are nil
-		if err == nil {
-			err = new(Error)
-		}
-
-		// Wrap each of the errors
-		for i, e := range err.Errors {
-			err.Errors[i] = errwrap.Wrapf(format, e)
-		}
-
-		return err
-	default:
-		return errwrap.Wrapf(format, err)
-	}
-}
diff --git a/vendor/github.com/hashicorp/go-multierror/sort.go b/vendor/github.com/hashicorp/go-multierror/sort.go
deleted file mode 100644
index fecb14e81..000000000
--- a/vendor/github.com/hashicorp/go-multierror/sort.go
+++ /dev/null
@@ -1,16 +0,0 @@
-package multierror
-
-// Len implements sort.Interface function for length
-func (err Error) Len() int {
-	return len(err.Errors)
-}
-
-// Swap implements sort.Interface function for swapping elements
-func (err Error) Swap(i, j int) {
-	err.Errors[i], err.Errors[j] = err.Errors[j], err.Errors[i]
-}
-
-// Less implements sort.Interface function for determining order
-func (err Error) Less(i, j int) bool {
-	return err.Errors[i].Error() < err.Errors[j].Error()
-}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index c27da7151..fa19fcf5f 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -70,9 +70,10 @@ github.com/aws/aws-sdk-go/service/sts/stsiface
 # github.com/containerd/containerd v1.3.0
 ## explicit
 github.com/containerd/containerd/errdefs
-# github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201216170557-0c8b1bd96905
+# github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201217071531-2b97b583765b
 ## explicit
 github.com/containerd/stargz-snapshotter/estargz
+github.com/containerd/stargz-snapshotter/estargz/errorutil
 # github.com/cpuguy83/go-md2man/v2 v2.0.0
 github.com/cpuguy83/go-md2man/v2/md2man
 # github.com/davecgh/go-spew v1.1.1
@@ -155,11 +156,6 @@ github.com/googleapis/gnostic/compiler
 github.com/googleapis/gnostic/extensions
 # github.com/gorilla/mux v1.7.3
 ## explicit
-# github.com/hashicorp/errwrap v1.1.0
-## explicit
-github.com/hashicorp/errwrap
-# github.com/hashicorp/go-multierror v1.1.0
-github.com/hashicorp/go-multierror
 # github.com/hashicorp/golang-lru v0.5.3
 ## explicit
 github.com/hashicorp/golang-lru