msrv: bump to Rust 1.60

This is seemingly needed for the soundness fix for #194. I spent zero
time trying to find what the real MSRV was or to find another way to fix
the soundness bug while maintaining the 1.41 MSRV because I didn't care
to. Rust 1.60 is conservative enough as it is.

.github/workflows/ci.yml

@@ -51,7 +51,7 @@ jobs:
         include:
         - build: pinned
           os: ubuntu-latest
-          rust: 1.41.1
+          rust: 1.60.0
         - build: stable
           os: ubuntu-latest
           rust: stable

Cargo.toml

@@ -11,7 +11,8 @@ categories = ["encoding", "parsing", "no-std"]
 keywords = ["byte", "endian", "big-endian", "little-endian", "binary"]
 license = "Unlicense OR MIT"
 exclude = ["/ci/*"]
-edition = "2018"
+edition = "2021"
+rust-version = "1.60"
 
 [lib]
 name = "byteorder"

README.md

@@ -58,7 +58,7 @@ byteorder = { version = "1", default-features = false }
 
 ### Minimum Rust version policy
 
-This crate's minimum supported `rustc` version is `1.41.1`.
+This crate's minimum supported `rustc` version is `1.60.0`.
 
 The current policy is that the minimum Rust version required to use this crate
 can be increased in minor version updates. For example, if `crate 1.0` requires