chore: Remove debug symbols from the release build

Author: Stranger6667

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Changed
+
+- Remove debug symbols from the release build
+
 ### Performance
 
 - Reduce the number of `String` allocations.

Cargo.toml

@@ -32,6 +32,3 @@ criterion = ">= 0.1"
 [[bench]]
 name = "inliner"
 harness = false
-
-[profile.release]
-debug = true

python/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Changed
+
+- Remove debug symbols from the release build
+
 ## [0.2.0] - 2020-06-25
 
 ### Added

src/lib.rs

@@ -279,7 +279,7 @@ fn process_css(document: &NodeRef, css: &str) -> Result<()> {
                             merge_styles(existing_style, &rule.declarations)?
                         } else {
                             let mut final_styles = String::with_capacity(32);
-                            for (name, value) in rule.declarations.iter() {
+                            for (name, value) in &rule.declarations {
                                 final_styles.push_str(name);
                                 final_styles.push(':');
                                 final_styles.push_str(value);