From 4f819b7cd17782f3090bc50265b5af7314eb20ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Oliveira?= <hello@jxs.pt>
Date: Fri, 5 Apr 2019 21:51:20 +0100
Subject: [PATCH] trace: fix counters example, Span IDs must be greater than
 zero (#1037)

## Motivation
tokio-trace counter example was panicking due to returning 0 as the first Span Id

## Solution
start ID's with 1 instead
---
 tokio-trace/examples/counters.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tokio-trace/examples/counters.rs b/tokio-trace/examples/counters.rs
index 45717184d..4c5b35839 100644
--- a/tokio-trace/examples/counters.rs
+++ b/tokio-trace/examples/counters.rs
@@ -113,7 +113,7 @@ impl Counters {
     fn new() -> (Self, CounterSubscriber) {
         let counters = Counters(Arc::new(RwLock::new(HashMap::new())));
         let subscriber = CounterSubscriber {
-            ids: AtomicUsize::new(0),
+            ids: AtomicUsize::new(1),
             counters: counters.clone(),
         };
         (counters, subscriber)