bump MSRV to 1.65 (#485)

actix-tracing/CHANGES.md

@@ -2,7 +2,7 @@
 
 ## Unreleased - 2023-xx-xx
 
-- Minimum supported Rust version (MSRV) is now 1.60.
+- Minimum supported Rust version (MSRV) is now 1.65.
 
 ## 0.1.0 - 2020-01-15
 

actix-tracing/Cargo.toml

@@ -9,8 +9,8 @@ repository = "https://github.com/actix/actix-net.git"
 documentation = "https://docs.rs/actix-tracing"
 categories = ["network-programming", "asynchronous"]
 license = "MIT OR Apache-2.0"
-edition = "2021"
-rust-version = "1.60"
+edition.workspace = true
+rust-version.workspace = true
 
 [dependencies]
 actix-service = "2"

actix-tracing/src/lib.rs

@@ -118,9 +118,11 @@ where
 
 #[cfg(test)]
 mod test {
-    use std::cell::RefCell;
-    use std::collections::{BTreeMap, BTreeSet};
-    use std::sync::{Arc, RwLock};
+    use std::{
+        cell::RefCell,
+        collections::{BTreeMap, BTreeSet},
+        sync::{Arc, RwLock},
+    };
 
     use actix_service::{fn_factory, fn_service};
     use slab::Slab;