align err messages with function names

Author: maxsmythe

internal/benchmarking/boomer/glutton/exercise.go

@@ -53,16 +53,16 @@ func ExerciseBenchmark(ctx context.Context, apiStub ateapipb.ControlClient, http
 	if err := u.ensureAtespace(ctx); err != nil {
 		return fmt.Errorf("EnsureAtespace: %w", err)
 	}
-	if err := u.create(ctx); err != nil {
+	if err := u.createActor(ctx); err != nil {
 		return fmt.Errorf("CreateActor: %w", err)
 	}
 	for _, phase := range []string{"cold", "warm"} {
 		if err := u.runIteration(ctx); err != nil {
-			return fmt.Errorf("%s iteration: %w", phase, err)
+			return fmt.Errorf("%s runIteration: %w", phase, err)
 		}
 	}
 	if err := u.delete(ctx); err != nil {
-		return fmt.Errorf("DeleteActor: %w", err)
+		return fmt.Errorf("delete: %w", err)
 	}
 	return nil
 }

internal/benchmarking/boomer/glutton/lifecycle.go

@@ -160,7 +160,7 @@ func (r *taskRuntime) startUser(ctx context.Context) (*gluttonUser, error) {
 		bmetrics.UpdateUsers(userClass, -1)
 		return nil, err
 	}
-	if err := u.create(ctx); err != nil {
+	if err := u.createActor(ctx); err != nil {
 		bmetrics.UpdateUsers(userClass, -1)
 		return nil, err
 	}
@@ -227,7 +227,7 @@ func (u *gluttonUser) ensureAtespace(ctx context.Context) error {
 	})
 }
 
-func (u *gluttonUser) create(ctx context.Context) error {
+func (u *gluttonUser) createActor(ctx context.Context) error {
 	return u.tracedCall(ctx, "CreateActor", func(callCtx context.Context, tr *metadata.MD) error {
 		_, err := u.cfg.APIStub.CreateActor(callCtx, &ateapipb.CreateActorRequest{
 			Actor: &ateapipb.Actor{