From c3d6ce4f6dc86ea5dd712cd89f7ff9abec2439b4 Mon Sep 17 00:00:00 2001
From: DaniPopes <57450786+DaniPopes@users.noreply.github.com>
Date: Wed, 4 Jun 2025 21:41:46 +0200
Subject: [PATCH] subscriber: correct spans in Directive::parse

`i` refers to `from.trim()` but `from` is used when indexing.
---
 tracing-subscriber/src/filter/env/directive.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tracing-subscriber/src/filter/env/directive.rs b/tracing-subscriber/src/filter/env/directive.rs
index 0b9ffc4c00..97c06597cc 100644
--- a/tracing-subscriber/src/filter/env/directive.rs
+++ b/tracing-subscriber/src/filter/env/directive.rs
@@ -139,7 +139,8 @@ impl Directive {
 
         use ParseState::*;
         let mut state = Start;
-        for (i, c) in from.trim().char_indices() {
+        let from = from.trim();
+        for (i, c) in from.char_indices() {
             state = match (state, c) {
                 (Start, '[') => Span { span_start: i + 1 },
                 (Start, c) if !['-', ':', '_'].contains(&c) && !c.is_alphanumeric() => {