Bump MSRV to 1.53

Author: chrysn

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
 
         include:
           # Test MSRV
-          - rust: 1.51.0
+          - rust: 1.53.0
             TARGET: x86_64-unknown-linux-gnu
 
           # Test nightly but don't fail

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 * Add blanket impls of all the traits for mutable references.
 - Bump dependency version of `no-std-net` to `v0.6`.
+- Bump MSRV to 1.53.0 due to `no-std-net`'s use of or-patterns.
 
 ## [0.6.0] - 2021-05-25
 

README.md

@@ -35,7 +35,7 @@ These issues / PRs will be labeled as `proposal`s in the issue tracker.
 
 ## Minimum Supported Rust Version (MSRV)
 
-This crate is guaranteed to compile on stable Rust 1.51.0 and up. It *might*
+This crate is guaranteed to compile on stable Rust 1.53.0 and up. It *might*
 compile with older versions but that may change in any new patch release.
 
 ## License