Fix crash in attester/duties and inclusion.

A recent change for a return value going from an array to a map caused a
bad indexing in to the returned data.  This ensures that the value is
read directly from the map rather than using a hard-coded offset.

CHANGELOG.md

@@ -1,3 +1,6 @@
+1.8.1
+  - fix issue where 'attester duties' and 'attester inclusion' could crash
+
 1.8.0
   - add "chain time"
   - add "validator keycheck"

cmd/attester/duties/process.go

@@ -66,7 +66,10 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	if len(validators) == 0 {
 		return nil, errors.New("validator is not known")
 	}
-	validator := validators[0]
+	var validator *api.Validator
+	for _, v := range validators {
+		validator = v
+	}
 
 	results := &dataOut{
 		debug:   data.debug,

cmd/attester/inclusion/process.go

@@ -66,7 +66,10 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	if len(validators) == 0 {
 		return nil, errors.New("validator is not known")
 	}
-	validator := validators[0]
+	var validator *api.Validator
+	for _, v := range validators {
+		validator = v
+	}
 
 	results := &dataOut{
 		debug:   data.debug,

cmd/version.go

@@ -24,7 +24,7 @@ import (
 
 // ReleaseVersion is the release version of the codebase.
 // Usually overrideen by tag names when building binaries.
-var ReleaseVersion = "local build (latest release 1.8.0)"
+var ReleaseVersion = "local build (latest release 1.8.1)"
 
 // versionCmd represents the version command
 var versionCmd = &cobra.Command{