Update MSRV for all crates to 1.75 (#2943)

axum-core/CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+# Unreleased
+
+- **change:** Update minimum rust version to 1.75 ([#2943])
+
+[#2943]: https://github.com/tokio-rs/axum/pull/2943
+
 # 0.4.5
 
 - **fixed:** Compile errors from the internal `__log_rejection` macro under

axum-core/Cargo.toml

@@ -2,7 +2,7 @@
 categories = ["asynchronous", "network-programming", "web-programming"]
 description = "Core types and traits for axum"
 edition = "2021"
-rust-version = "1.57"
+rust-version = { workspace = true }
 homepage = "https://github.com/tokio-rs/axum"
 keywords = ["http", "web", "framework"]
 license = "MIT"