diff --git a/go.mod b/go.mod
index 59d04313c..190b4cd09 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/VictoriaMetrics/fasthttp v1.0.1
 	github.com/VictoriaMetrics/metrics v1.11.3
 	github.com/VictoriaMetrics/metricsql v0.2.4
-	github.com/aws/aws-sdk-go v1.32.13
+	github.com/aws/aws-sdk-go v1.33.3
 	github.com/cespare/xxhash/v2 v2.1.1
 	github.com/golang/snappy v0.0.1
 	github.com/klauspost/compress v1.10.10
@@ -20,12 +20,13 @@ require (
 	github.com/valyala/histogram v1.0.1
 	github.com/valyala/quicktemplate v1.5.0
 	go.opencensus.io v0.22.4 // indirect
-	golang.org/x/net v0.0.0-20200625001655-4c5254603344 // indirect
+	golang.org/x/net v0.0.0-20200707034311-ab3426394381 // indirect
 	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
 	golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae
 	golang.org/x/text v0.3.3 // indirect
-	golang.org/x/tools v0.0.0-20200630154851-b2d8b0336632 // indirect
+	golang.org/x/tools v0.0.0-20200708003708-134513de8882 // indirect
 	google.golang.org/api v0.28.0
+	google.golang.org/genproto v0.0.0-20200708133552-18036109789b // indirect
 	google.golang.org/grpc v1.30.0 // indirect
 	gopkg.in/yaml.v2 v2.3.0
 )
diff --git a/go.sum b/go.sum
index 11af51cac..ca60ab413 100644
--- a/go.sum
+++ b/go.sum
@@ -57,8 +57,8 @@ github.com/VictoriaMetrics/metricsql v0.2.4 h1:240YwT8B4KITVFE7EOrf1rVvsY+5fYsAz
 github.com/VictoriaMetrics/metricsql v0.2.4/go.mod h1:UIjd9S0W1UnTWlJdM0wLS+2pfuPqjwqKoK8yTos+WyE=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156 h1:eMwmnE/GDgah4HI848JfFxHt+iPb26b4zyfspmqY0/8=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
-github.com/aws/aws-sdk-go v1.32.13 h1:zzyXF7SUxJcJa3hTcYCl1/Ey+kh2N8TjK5tWnL0wieo=
-github.com/aws/aws-sdk-go v1.32.13/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
+github.com/aws/aws-sdk-go v1.33.3 h1:wjhURjD/xuBBxdCan0F5yuW7qzkSlYY4/RdYGlyab9s=
+github.com/aws/aws-sdk-go v1.33.3/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
@@ -176,6 +176,7 @@ github.com/valyala/quicktemplate v1.5.0/go.mod h1:v7yYWpBEiutDyNfVaph6oC/yKwejzV
 github.com/valyala/tcplisten v0.0.0-20161114210144-ceec8f93295a/go.mod h1:v3UYOV9WzVtRmSR+PDvWpU/qWl4Wa5LApYYX4ZtKbio=
 github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
@@ -248,6 +249,8 @@ golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2 h1:eDrdRpKgkcCqKZQwyZRyeFZgf
 golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200625001655-4c5254603344 h1:vGXIOMxbNfDTk/aXCmfdLgkrSV+Z2tcbze+pEc3v5W4=
 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
+golang.org/x/net v0.0.0-20200707034311-ab3426394381 h1:VXak5I6aEWmAXeQjA+QSZzlgNrpq9mjcfDemuexIKsU=
+golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -262,6 +265,7 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a h1:WXEvlFVvvGxCJLG6REjsT03iWnKLEWinaScsxF2Vm2o=
 golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -338,8 +342,8 @@ golang.org/x/tools v0.0.0-20200512131952-2bc93b1c0c88/go.mod h1:EkVYQZoAsY45+roY
 golang.org/x/tools v0.0.0-20200515010526-7d3b6ebf133d/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20200618134242-20370b0cb4b2/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20200626171337-aa94e735be7f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20200630154851-b2d8b0336632 h1:fxWeLV4ol1icb47+btwfzuf8gOkJE/PPo9bLjSvZzA8=
-golang.org/x/tools v0.0.0-20200630154851-b2d8b0336632/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
+golang.org/x/tools v0.0.0-20200708003708-134513de8882 h1:x4Two2lSwHxTqR+eal4lB4ydUnTvmDDpPQeL92ZHDgA=
+golang.org/x/tools v0.0.0-20200708003708-134513de8882/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
@@ -397,6 +401,8 @@ google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEY
 google.golang.org/genproto v0.0.0-20200618031413-b414f8b61790/go.mod h1:jDfRM7FcilCzHH/e9qn6dsT145K34l5v+OpcnNgKAAA=
 google.golang.org/genproto v0.0.0-20200626011028-ee7919e894b5 h1:a/Sqq5B3dGnmxhuJZIHFsIxhEkqElErr5TaU6IqBAj0=
 google.golang.org/genproto v0.0.0-20200626011028-ee7919e894b5/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
+google.golang.org/genproto v0.0.0-20200708133552-18036109789b h1:gYoomKOmhJ9YGwv9D05xH6fNWcNBNrMvOuoysvYIVV4=
+google.golang.org/genproto v0.0.0-20200708133552-18036109789b/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
diff --git a/vendor/github.com/aws/aws-sdk-go/aws/endpoints/defaults.go b/vendor/github.com/aws/aws-sdk-go/aws/endpoints/defaults.go
index 8bde8da5b..fecbf4bb0 100644
--- a/vendor/github.com/aws/aws-sdk-go/aws/endpoints/defaults.go
+++ b/vendor/github.com/aws/aws-sdk-go/aws/endpoints/defaults.go
@@ -684,11 +684,16 @@ var awsPartition = partition{
 				"ap-south-1":     endpoint{},
 				"ap-southeast-1": endpoint{},
 				"ap-southeast-2": endpoint{},
+				"ca-central-1":   endpoint{},
 				"eu-central-1":   endpoint{},
+				"eu-north-1":     endpoint{},
 				"eu-west-1":      endpoint{},
 				"eu-west-2":      endpoint{},
+				"eu-west-3":      endpoint{},
+				"sa-east-1":      endpoint{},
 				"us-east-1":      endpoint{},
 				"us-east-2":      endpoint{},
+				"us-west-1":      endpoint{},
 				"us-west-2":      endpoint{},
 			},
 		},
@@ -4280,6 +4285,7 @@ var awsPartition = partition{
 		"ram": service{
 
 			Endpoints: endpoints{
+				"af-south-1":     endpoint{},
 				"ap-east-1":      endpoint{},
 				"ap-northeast-1": endpoint{},
 				"ap-northeast-2": endpoint{},
@@ -4289,6 +4295,7 @@ var awsPartition = partition{
 				"ca-central-1":   endpoint{},
 				"eu-central-1":   endpoint{},
 				"eu-north-1":     endpoint{},
+				"eu-south-1":     endpoint{},
 				"eu-west-1":      endpoint{},
 				"eu-west-2":      endpoint{},
 				"eu-west-3":      endpoint{},
@@ -6811,13 +6818,20 @@ var awscnPartition = partition{
 		"snowball": service{
 
 			Endpoints: endpoints{
-				"cn-north-1": endpoint{},
+				"cn-north-1":     endpoint{},
+				"cn-northwest-1": endpoint{},
 				"fips-cn-north-1": endpoint{
 					Hostname: "snowball-fips.cn-north-1.amazonaws.com.cn",
 					CredentialScope: credentialScope{
 						Region: "cn-north-1",
 					},
 				},
+				"fips-cn-northwest-1": endpoint{
+					Hostname: "snowball-fips.cn-northwest-1.amazonaws.com.cn",
+					CredentialScope: credentialScope{
+						Region: "cn-northwest-1",
+					},
+				},
 			},
 		},
 		"sns": service{
diff --git a/vendor/github.com/aws/aws-sdk-go/aws/version.go b/vendor/github.com/aws/aws-sdk-go/aws/version.go
index cb17e594e..4511bf850 100644
--- a/vendor/github.com/aws/aws-sdk-go/aws/version.go
+++ b/vendor/github.com/aws/aws-sdk-go/aws/version.go
@@ -5,4 +5,4 @@ package aws
 const SDKName = "aws-sdk-go"
 
 // SDKVersion is the version of this SDK
-const SDKVersion = "1.32.13"
+const SDKVersion = "1.33.3"
diff --git a/vendor/golang.org/x/tools/cmd/goimports/goimports.go b/vendor/golang.org/x/tools/cmd/goimports/goimports.go
index f177b2d9a..27708972d 100644
--- a/vendor/golang.org/x/tools/cmd/goimports/goimports.go
+++ b/vendor/golang.org/x/tools/cmd/goimports/goimports.go
@@ -21,6 +21,7 @@ import (
 	"runtime/pprof"
 	"strings"
 
+	"golang.org/x/tools/internal/gocommand"
 	"golang.org/x/tools/internal/imports"
 )
 
@@ -42,14 +43,16 @@ var (
 		TabIndent: true,
 		Comments:  true,
 		Fragment:  true,
-		Env: &imports.ProcessEnv{},
+		Env: &imports.ProcessEnv{
+			GocmdRunner: &gocommand.Runner{},
+		},
 	}
 	exitCode = 0
 )
 
 func init() {
 	flag.BoolVar(&options.AllErrors, "e", false, "report all errors (not just the first 10 on different lines)")
-	flag.StringVar(&options.Env.LocalPrefix, "local", "", "put imports beginning with this string after 3rd-party packages; comma-separated list")
+	flag.StringVar(&options.LocalPrefix, "local", "", "put imports beginning with this string after 3rd-party packages; comma-separated list")
 	flag.BoolVar(&options.FormatOnly, "format-only", false, "if true, don't fix imports and only format. In this mode, goimports is effectively gofmt, with the addition that imports are grouped into sections.")
 }
 
diff --git a/vendor/golang.org/x/tools/internal/imports/fix.go b/vendor/golang.org/x/tools/internal/imports/fix.go
index 2c7030765..ecd13e87a 100644
--- a/vendor/golang.org/x/tools/internal/imports/fix.go
+++ b/vendor/golang.org/x/tools/internal/imports/fix.go
@@ -32,25 +32,25 @@ import (
 
 // importToGroup is a list of functions which map from an import path to
 // a group number.
-var importToGroup = []func(env *ProcessEnv, importPath string) (num int, ok bool){
-	func(env *ProcessEnv, importPath string) (num int, ok bool) {
-		if env.LocalPrefix == "" {
+var importToGroup = []func(localPrefix, importPath string) (num int, ok bool){
+	func(localPrefix, importPath string) (num int, ok bool) {
+		if localPrefix == "" {
 			return
 		}
-		for _, p := range strings.Split(env.LocalPrefix, ",") {
+		for _, p := range strings.Split(localPrefix, ",") {
 			if strings.HasPrefix(importPath, p) || strings.TrimSuffix(p, "/") == importPath {
 				return 3, true
 			}
 		}
 		return
 	},
-	func(_ *ProcessEnv, importPath string) (num int, ok bool) {
+	func(_, importPath string) (num int, ok bool) {
 		if strings.HasPrefix(importPath, "appengine") {
 			return 2, true
 		}
 		return
 	},
-	func(_ *ProcessEnv, importPath string) (num int, ok bool) {
+	func(_, importPath string) (num int, ok bool) {
 		firstComponent := strings.Split(importPath, "/")[0]
 		if strings.Contains(firstComponent, ".") {
 			return 1, true
@@ -59,9 +59,9 @@ var importToGroup = []func(env *ProcessEnv, importPath string) (num int, ok bool
 	},
 }
 
-func importGroup(env *ProcessEnv, importPath string) int {
+func importGroup(localPrefix, importPath string) int {
 	for _, fn := range importToGroup {
-		if n, ok := fn(env, importPath); ok {
+		if n, ok := fn(localPrefix, importPath); ok {
 			return n
 		}
 	}
@@ -278,7 +278,12 @@ func (p *pass) loadPackageNames(imports []*ImportInfo) error {
 		unknown = append(unknown, imp.ImportPath)
 	}
 
-	names, err := p.env.GetResolver().loadPackageNames(unknown, p.srcDir)
+	resolver, err := p.env.GetResolver()
+	if err != nil {
+		return err
+	}
+
+	names, err := resolver.loadPackageNames(unknown, p.srcDir)
 	if err != nil {
 		return err
 	}
@@ -640,15 +645,23 @@ func getCandidatePkgs(ctx context.Context, wrappedCallback *scanCallback, filena
 			wrappedCallback.exportsLoaded(pkg, exports)
 		},
 	}
-	return env.GetResolver().scan(ctx, scanFilter)
+	resolver, err := env.GetResolver()
+	if err != nil {
+		return err
+	}
+	return resolver.scan(ctx, scanFilter)
 }
 
-func ScoreImportPaths(ctx context.Context, env *ProcessEnv, paths []string) map[string]int {
+func ScoreImportPaths(ctx context.Context, env *ProcessEnv, paths []string) (map[string]int, error) {
 	result := make(map[string]int)
-	for _, path := range paths {
-		result[path] = env.GetResolver().scoreImportPath(ctx, path)
+	resolver, err := env.GetResolver()
+	if err != nil {
+		return nil, err
 	}
-	return result
+	for _, path := range paths {
+		result[path] = resolver.scoreImportPath(ctx, path)
+	}
+	return result, nil
 }
 
 func PrimeCache(ctx context.Context, env *ProcessEnv) error {
@@ -674,8 +687,9 @@ func candidateImportName(pkg *pkg) string {
 	return ""
 }
 
-// getAllCandidates gets all of the candidates to be imported, regardless of if they are needed.
-func getAllCandidates(ctx context.Context, wrapped func(ImportFix), searchPrefix, filename, filePkg string, env *ProcessEnv) error {
+// GetAllCandidates gets all of the packages starting with prefix that can be
+// imported by filename, sorted by import path.
+func GetAllCandidates(ctx context.Context, wrapped func(ImportFix), searchPrefix, filename, filePkg string, env *ProcessEnv) error {
 	callback := &scanCallback{
 		rootFound: func(gopathwalk.Root) bool {
 			return true
@@ -714,7 +728,8 @@ type PackageExport struct {
 	Exports []string
 }
 
-func getPackageExports(ctx context.Context, wrapped func(PackageExport), searchPkg, filename, filePkg string, env *ProcessEnv) error {
+// GetPackageExports returns all known packages with name pkg and their exports.
+func GetPackageExports(ctx context.Context, wrapped func(PackageExport), searchPkg, filename, filePkg string, env *ProcessEnv) error {
 	callback := &scanCallback{
 		rootFound: func(gopathwalk.Root) bool {
 			return true
@@ -749,8 +764,6 @@ var RequiredGoEnvVars = []string{"GO111MODULE", "GOFLAGS", "GOINSECURE", "GOMOD"
 // ProcessEnv contains environment variables and settings that affect the use of
 // the go command, the go/build package, etc.
 type ProcessEnv struct {
-	LocalPrefix string
-
 	GocmdRunner *gocommand.Runner
 
 	BuildFlags []string
@@ -830,16 +843,19 @@ func (e *ProcessEnv) env() []string {
 	return env
 }
 
-func (e *ProcessEnv) GetResolver() Resolver {
+func (e *ProcessEnv) GetResolver() (Resolver, error) {
 	if e.resolver != nil {
-		return e.resolver
+		return e.resolver, nil
+	}
+	if err := e.init(); err != nil {
+		return nil, err
 	}
 	if len(e.Env["GOMOD"]) == 0 {
 		e.resolver = newGopathResolver(e)
-		return e.resolver
+		return e.resolver, nil
 	}
 	e.resolver = newModuleResolver(e)
-	return e.resolver
+	return e.resolver, nil
 }
 
 func (e *ProcessEnv) buildContext() *build.Context {
@@ -964,10 +980,13 @@ func addExternalCandidates(pass *pass, refs references, filename string) error {
 			return false // We'll do our own loading after we sort.
 		},
 	}
-	err := pass.env.GetResolver().scan(context.Background(), callback)
+	resolver, err := pass.env.GetResolver()
 	if err != nil {
 		return err
 	}
+	if err = resolver.scan(context.Background(), callback); err != nil {
+		return err
+	}
 
 	// Search for imports matching potential package references.
 	type result struct {
@@ -1408,6 +1427,10 @@ func findImport(ctx context.Context, pass *pass, candidates []pkgDistance, pkgNa
 			pass.env.Logf("%s candidate %d/%d: %v in %v", pkgName, i+1, len(candidates), c.pkg.importPathShort, c.pkg.dir)
 		}
 	}
+	resolver, err := pass.env.GetResolver()
+	if err != nil {
+		return nil, err
+	}
 
 	// Collect exports for packages with matching names.
 	rescv := make([]chan *pkg, len(candidates))
@@ -1446,7 +1469,7 @@ func findImport(ctx context.Context, pass *pass, candidates []pkgDistance, pkgNa
 				}
 				// If we're an x_test, load the package under test's test variant.
 				includeTest := strings.HasSuffix(pass.f.Name.Name, "_test") && c.pkg.dir == pass.srcDir
-				_, exports, err := pass.env.GetResolver().loadExports(ctx, c.pkg, includeTest)
+				_, exports, err := resolver.loadExports(ctx, c.pkg, includeTest)
 				if err != nil {
 					if pass.env.Logf != nil {
 						pass.env.Logf("loading exports in dir %s (seeking package %s): %v", c.pkg.dir, pkgName, err)
diff --git a/vendor/golang.org/x/tools/internal/imports/imports.go b/vendor/golang.org/x/tools/internal/imports/imports.go
index 04ecdfda3..2815edc33 100644
--- a/vendor/golang.org/x/tools/internal/imports/imports.go
+++ b/vendor/golang.org/x/tools/internal/imports/imports.go
@@ -11,7 +11,6 @@ package imports
 import (
 	"bufio"
 	"bytes"
-	"context"
 	"fmt"
 	"go/ast"
 	"go/format"
@@ -19,19 +18,22 @@ import (
 	"go/printer"
 	"go/token"
 	"io"
-	"io/ioutil"
 	"regexp"
 	"strconv"
 	"strings"
 
 	"golang.org/x/tools/go/ast/astutil"
-	"golang.org/x/tools/internal/gocommand"
 )
 
 // Options is golang.org/x/tools/imports.Options with extra internal-only options.
 type Options struct {
 	Env *ProcessEnv // The environment to use. Note: this contains the cached module and filesystem state.
 
+	// LocalPrefix is a comma-separated string of import path prefixes, which, if
+	// set, instructs Process to sort the import paths with the given prefixes
+	// into another group after 3rd-party packages.
+	LocalPrefix string
+
 	Fragment  bool // Accept fragment of a source file (no package statement)
 	AllErrors bool // Report all errors (not just the first 10 on different lines)
 
@@ -42,13 +44,8 @@ type Options struct {
 	FormatOnly bool // Disable the insertion and deletion of imports
 }
 
-// Process implements golang.org/x/tools/imports.Process with explicit context in env.
+// Process implements golang.org/x/tools/imports.Process with explicit context in opt.Env.
 func Process(filename string, src []byte, opt *Options) (formatted []byte, err error) {
-	src, opt, err = initialize(filename, src, opt)
-	if err != nil {
-		return nil, err
-	}
-
 	fileSet := token.NewFileSet()
 	file, adjust, err := parse(fileSet, filename, src, opt)
 	if err != nil {
@@ -64,16 +61,12 @@ func Process(filename string, src []byte, opt *Options) (formatted []byte, err e
 }
 
 // FixImports returns a list of fixes to the imports that, when applied,
-// will leave the imports in the same state as Process.
+// will leave the imports in the same state as Process. src and opt must
+// be specified.
 //
 // Note that filename's directory influences which imports can be chosen,
 // so it is important that filename be accurate.
 func FixImports(filename string, src []byte, opt *Options) (fixes []*ImportFix, err error) {
-	src, opt, err = initialize(filename, src, opt)
-	if err != nil {
-		return nil, err
-	}
-
 	fileSet := token.NewFileSet()
 	file, _, err := parse(fileSet, filename, src, opt)
 	if err != nil {
@@ -84,13 +77,9 @@ func FixImports(filename string, src []byte, opt *Options) (fixes []*ImportFix,
 }
 
 // ApplyFixes applies all of the fixes to the file and formats it. extraMode
-// is added in when parsing the file.
+// is added in when parsing the file. src and opts must be specified, but no
+// env is needed.
 func ApplyFixes(fixes []*ImportFix, filename string, src []byte, opt *Options, extraMode parser.Mode) (formatted []byte, err error) {
-	src, opt, err = initialize(filename, src, opt)
-	if err != nil {
-		return nil, err
-	}
-
 	// Don't use parse() -- we don't care about fragments or statement lists
 	// here, and we need to work with unparseable files.
 	fileSet := token.NewFileSet()
@@ -114,60 +103,9 @@ func ApplyFixes(fixes []*ImportFix, filename string, src []byte, opt *Options, e
 	return formatFile(fileSet, file, src, nil, opt)
 }
 
-// GetAllCandidates gets all of the packages starting with prefix that can be
-// imported by filename, sorted by import path.
-func GetAllCandidates(ctx context.Context, callback func(ImportFix), searchPrefix, filename, filePkg string, opt *Options) error {
-	_, opt, err := initialize(filename, []byte{}, opt)
-	if err != nil {
-		return err
-	}
-	return getAllCandidates(ctx, callback, searchPrefix, filename, filePkg, opt.Env)
-}
-
-// GetPackageExports returns all known packages with name pkg and their exports.
-func GetPackageExports(ctx context.Context, callback func(PackageExport), searchPkg, filename, filePkg string, opt *Options) error {
-	_, opt, err := initialize(filename, []byte{}, opt)
-	if err != nil {
-		return err
-	}
-	return getPackageExports(ctx, callback, searchPkg, filename, filePkg, opt.Env)
-}
-
-// initialize sets the values for opt and src.
-// If they are provided, they are not changed. Otherwise opt is set to the
-// default values and src is read from the file system.
-func initialize(filename string, src []byte, opt *Options) ([]byte, *Options, error) {
-	// Use defaults if opt is nil.
-	if opt == nil {
-		opt = &Options{Comments: true, TabIndent: true, TabWidth: 8}
-	}
-
-	// Set the env if the user has not provided it.
-	if opt.Env == nil {
-		opt.Env = &ProcessEnv{}
-	}
-	// Set the gocmdRunner if the user has not provided it.
-	if opt.Env.GocmdRunner == nil {
-		opt.Env.GocmdRunner = &gocommand.Runner{}
-	}
-	if err := opt.Env.init(); err != nil {
-		return nil, nil, err
-	}
-
-	if src == nil {
-		b, err := ioutil.ReadFile(filename)
-		if err != nil {
-			return nil, nil, err
-		}
-		src = b
-	}
-
-	return src, opt, nil
-}
-
 func formatFile(fileSet *token.FileSet, file *ast.File, src []byte, adjust func(orig []byte, src []byte) []byte, opt *Options) ([]byte, error) {
-	mergeImports(opt.Env, fileSet, file)
-	sortImports(opt.Env, fileSet, file)
+	mergeImports(fileSet, file)
+	sortImports(opt.LocalPrefix, fileSet, file)
 	imps := astutil.Imports(fileSet, file)
 	var spacesBefore []string // import paths we need spaces before
 	for _, impSection := range imps {
@@ -178,7 +116,7 @@ func formatFile(fileSet *token.FileSet, file *ast.File, src []byte, adjust func(
 		lastGroup := -1
 		for _, importSpec := range impSection {
 			importPath, _ := strconv.Unquote(importSpec.Path.Value)
-			groupNum := importGroup(opt.Env, importPath)
+			groupNum := importGroup(opt.LocalPrefix, importPath)
 			if groupNum != lastGroup && lastGroup != -1 {
 				spacesBefore = append(spacesBefore, importPath)
 			}
diff --git a/vendor/golang.org/x/tools/internal/imports/sortimports.go b/vendor/golang.org/x/tools/internal/imports/sortimports.go
index 226279471..be8ffa25f 100644
--- a/vendor/golang.org/x/tools/internal/imports/sortimports.go
+++ b/vendor/golang.org/x/tools/internal/imports/sortimports.go
@@ -15,7 +15,7 @@ import (
 
 // sortImports sorts runs of consecutive import lines in import blocks in f.
 // It also removes duplicate imports when it is possible to do so without data loss.
-func sortImports(env *ProcessEnv, fset *token.FileSet, f *ast.File) {
+func sortImports(localPrefix string, fset *token.FileSet, f *ast.File) {
 	for i, d := range f.Decls {
 		d, ok := d.(*ast.GenDecl)
 		if !ok || d.Tok != token.IMPORT {
@@ -40,11 +40,11 @@ func sortImports(env *ProcessEnv, fset *token.FileSet, f *ast.File) {
 		for j, s := range d.Specs {
 			if j > i && fset.Position(s.Pos()).Line > 1+fset.Position(d.Specs[j-1].End()).Line {
 				// j begins a new run.  End this one.
-				specs = append(specs, sortSpecs(env, fset, f, d.Specs[i:j])...)
+				specs = append(specs, sortSpecs(localPrefix, fset, f, d.Specs[i:j])...)
 				i = j
 			}
 		}
-		specs = append(specs, sortSpecs(env, fset, f, d.Specs[i:])...)
+		specs = append(specs, sortSpecs(localPrefix, fset, f, d.Specs[i:])...)
 		d.Specs = specs
 
 		// Deduping can leave a blank line before the rparen; clean that up.
@@ -60,7 +60,7 @@ func sortImports(env *ProcessEnv, fset *token.FileSet, f *ast.File) {
 
 // mergeImports merges all the import declarations into the first one.
 // Taken from golang.org/x/tools/ast/astutil.
-func mergeImports(env *ProcessEnv, fset *token.FileSet, f *ast.File) {
+func mergeImports(fset *token.FileSet, f *ast.File) {
 	if len(f.Decls) <= 1 {
 		return
 	}
@@ -142,7 +142,7 @@ type posSpan struct {
 	End   token.Pos
 }
 
-func sortSpecs(env *ProcessEnv, fset *token.FileSet, f *ast.File, specs []ast.Spec) []ast.Spec {
+func sortSpecs(localPrefix string, fset *token.FileSet, f *ast.File, specs []ast.Spec) []ast.Spec {
 	// Can't short-circuit here even if specs are already sorted,
 	// since they might yet need deduplication.
 	// A lone import, however, may be safely ignored.
@@ -191,7 +191,7 @@ func sortSpecs(env *ProcessEnv, fset *token.FileSet, f *ast.File, specs []ast.Sp
 	// Reassign the import paths to have the same position sequence.
 	// Reassign each comment to abut the end of its spec.
 	// Sort the comments by new position.
-	sort.Sort(byImportSpec{env, specs})
+	sort.Sort(byImportSpec{localPrefix, specs})
 
 	// Dedup. Thanks to our sorting, we can just consider
 	// adjacent pairs of imports.
@@ -245,8 +245,8 @@ func sortSpecs(env *ProcessEnv, fset *token.FileSet, f *ast.File, specs []ast.Sp
 }
 
 type byImportSpec struct {
-	env   *ProcessEnv
-	specs []ast.Spec // slice of *ast.ImportSpec
+	localPrefix string
+	specs       []ast.Spec // slice of *ast.ImportSpec
 }
 
 func (x byImportSpec) Len() int      { return len(x.specs) }
@@ -255,8 +255,8 @@ func (x byImportSpec) Less(i, j int) bool {
 	ipath := importPath(x.specs[i])
 	jpath := importPath(x.specs[j])
 
-	igroup := importGroup(x.env, ipath)
-	jgroup := importGroup(x.env, jpath)
+	igroup := importGroup(x.localPrefix, ipath)
+	jgroup := importGroup(x.localPrefix, jpath)
 	if igroup != jgroup {
 		return igroup < jgroup
 	}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 6e97c26dc..08d50ece8 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -19,7 +19,7 @@ github.com/VictoriaMetrics/metrics
 # github.com/VictoriaMetrics/metricsql v0.2.4
 github.com/VictoriaMetrics/metricsql
 github.com/VictoriaMetrics/metricsql/binaryop
-# github.com/aws/aws-sdk-go v1.32.13
+# github.com/aws/aws-sdk-go v1.33.3
 github.com/aws/aws-sdk-go/aws
 github.com/aws/aws-sdk-go/aws/arn
 github.com/aws/aws-sdk-go/aws/awserr
@@ -133,7 +133,7 @@ golang.org/x/lint/golint
 # golang.org/x/mod v0.3.0
 golang.org/x/mod/module
 golang.org/x/mod/semver
-# golang.org/x/net v0.0.0-20200625001655-4c5254603344
+# golang.org/x/net v0.0.0-20200707034311-ab3426394381
 golang.org/x/net/context
 golang.org/x/net/context/ctxhttp
 golang.org/x/net/http/httpguts
@@ -156,7 +156,7 @@ golang.org/x/text/secure/bidirule
 golang.org/x/text/transform
 golang.org/x/text/unicode/bidi
 golang.org/x/text/unicode/norm
-# golang.org/x/tools v0.0.0-20200630154851-b2d8b0336632
+# golang.org/x/tools v0.0.0-20200708003708-134513de8882
 golang.org/x/tools/cmd/goimports
 golang.org/x/tools/go/ast/astutil
 golang.org/x/tools/go/gcexportdata
@@ -196,7 +196,7 @@ google.golang.org/appengine/internal/modules
 google.golang.org/appengine/internal/remote_api
 google.golang.org/appengine/internal/urlfetch
 google.golang.org/appengine/urlfetch
-# google.golang.org/genproto v0.0.0-20200626011028-ee7919e894b5
+# google.golang.org/genproto v0.0.0-20200708133552-18036109789b
 google.golang.org/genproto/googleapis/api/annotations
 google.golang.org/genproto/googleapis/iam/v1
 google.golang.org/genproto/googleapis/rpc/code