Decrease minimum supported Rust version to 1.58

Now that we build with the actual minimum versions of dependencies, we
can downgrade our minimum supported Rust version back to 1.58, as it
contains all the features that we need.

Signed-off-by: Daniel Müller <deso@posteo.net>

Author: d-e-s-o

.github/workflows/rust.yml

@@ -73,7 +73,7 @@ jobs:
           profile: minimal
           # Please adjust README and rust-version field in Cargo.toml files when
           # bumping version.
-          toolchain: 1.59.0
+          toolchain: 1.58.0
           components: rustfmt
           default: true
       - name: Build

README.md

@@ -1,5 +1,5 @@
 ![CI](https://github.com/libbpf/libbpf-rs/workflows/Rust/badge.svg?branch=master)
-[![rustc](https://img.shields.io/badge/rustc-1.59+-blue.svg)](https://blog.rust-lang.org/2022/02/24/Rust-1.59.0.html)
+[![rustc](https://img.shields.io/badge/rustc-1.58+-blue.svg)](https://blog.rust-lang.org/2022/01/13/Rust-1.58.0.html)
 
 WARNING: The API is not stable and is subject to breakage. Any breakage will
 include a minor version bump pre-1.0 and a major version bump post-1.0.

libbpf-cargo/Cargo.toml

@@ -8,7 +8,7 @@ readme = "../README.md"
 version = "0.13.1"
 authors = ["Daniel Xu <dxu@dxuuu.xyz>"]
 edition = "2021"
-rust-version = "1.59"
+rust-version = "1.58"
 license = "LGPL-2.1 OR BSD-2-Clause"
 keywords = ["bpf", "ebpf", "libbpf"]
 

libbpf-rs/Cargo.toml

@@ -7,7 +7,7 @@ readme = "../README.md"
 version = "0.19.1"
 authors = ["Daniel Xu <dxu@dxuuu.xyz>"]
 edition = "2021"
-rust-version = "1.59"
+rust-version = "1.58"
 license = "LGPL-2.1 OR BSD-2-Clause"
 keywords = ["bpf", "ebpf", "libbpf"]