Update minimum supported Rust version to 1.60.0

This change updates the minimum version of Rust that we support to
1.60.0. We need this version because it is a requirement for env_logger
version 0.10, to which we would like to update subsequently. In the
process we switch the crate over to using Rust edition 2021.

.github/workflows/test.yml

@@ -47,10 +47,10 @@ jobs:
         with:
           # Please adjust README and rust-version field in Cargo.toml files when
           # bumping version.
-          toolchain: 1.56
+          toolchain: 1.60
       - uses: Swatinem/rust-cache@v2
       - name: Build
-        run: cargo build --locked --all-features
+        run: cargo build --frozen --all-features
   rustfmt:
     name: Check code formatting
     runs-on: ubuntu-latest

CHANGELOG.md

@@ -5,6 +5,7 @@ Unreleased
 - Introduced `default_log_filter` attribute for setting the default log
   filter on a per-test basis behind new `unstable` feature
 - Improved compile error output on wrong usage
+- Bumped minimum supported Rust version to `1.60`
 
 
 0.2.13

Cargo.toml

@@ -2,8 +2,8 @@
 name = "test-log"
 version = "0.2.13"
 authors = ["Daniel Mueller <deso@posteo.net>"]
-edition = "2018"
-rust-version = "1.56"
+edition = "2021"
+rust-version = "1.60"
 license = "Apache-2.0 OR MIT"
 homepage = "https://github.com/d-e-s-o/test-log"
 repository = "https://github.com/d-e-s-o/test-log.git"

README.md

@@ -1,7 +1,7 @@
 [![pipeline](https://github.com/d-e-s-o/test-log/actions/workflows/test.yml/badge.svg?branch=main)](https://github.com/d-e-s-o/test-log/actions/workflows/test.yml)
 [![crates.io](https://img.shields.io/crates/v/test-log.svg)](https://crates.io/crates/test-log)
 [![Docs](https://docs.rs/test-log/badge.svg)](https://docs.rs/test-log)
-[![rustc](https://img.shields.io/badge/rustc-1.56+-blue.svg)](https://blog.rust-lang.org/2021/10/21/Rust-1.56.0.html)
+[![rustc](https://img.shields.io/badge/rustc-1.60+-blue.svg)](https://blog.rust-lang.org/2022/04/07/Rust-1.60.0.html)
 
 test-log
 ========