feat: 📌 update MSRV policy

.github/workflows/building.yml

@@ -73,7 +73,7 @@ jobs:
       - name: Setup Rust toolchain
         uses: moonrepo/setup-rust@v1
         with:
-          channel: "1.74"
+          channel: "1.77"
           components: rust-src
           bins: cargo-hack
         env:

Cargo.toml

@@ -19,8 +19,8 @@ edition = "2021"
 license = "Apache-2.0"
 repository = "https://github.com/NJUPT-SAST/rsjudge"
 
-# clap requires Rust 1.74+ to work
-rust-version = "1.74"
+# MSRV is set to N - 2, where N is the current stable version.
+rust-version = "1.77"
 
 [workspace.dependencies]
 log = "0.4.21"

README.adoc

@@ -20,6 +20,10 @@ An online judge sandbox server in Rust, inspired by https://github.com/criyle/go
 * Highly extensible with plugins.
 * Blazingly fast and secured with Rust🦀.
 
+== Pronunciation and spelling
+
+The name "rsjudge" is a combination of "Rust" and "judge". It is pronounced as "R-S-judge". The word should be written in lowercase, with no space in between, even in the title or at the beginning of a sentence.
+
 == Repository structure
 
 `src/`::
@@ -49,14 +53,27 @@ https://mango-dune-07a8b7110.1.azurestaticapps.net/?repo=NJUPT-SAST%2Frsjudge[
 
 === Prerequisites
 
-* Rust 1.74 or later,
+* Rust toolchain according to <<msrv, MSRV>>.
 * Linux kernel >= 4.5,
 ** Required for Seccomp BPF support.
 * For gRPC support (under `grpc` feature):
 ** https://github.com/protocolbuffers/protobuf?tab=readme-ov-file#protobuf-compiler-installation[`protoc`] >= 3.15,
 ** https://github.com/bufbuild/buf/[`buf`] for gRPC dependencies management.
 * For `.deb` package generation, a Debian/Ubuntu system with `dpkg-dev` and `liblzma-dev` installed.
 
+[#msrv]
+==== MSRV (Minimum Supported Rust Version)
+
+rsjudge uses the MSRV policy of N - 2, where N is the current stable version of Rust. For example, if the current stable version is 1.79, then the MSRV will be set to 1.77.
+
+The current MSRV can be found in the `rust-version` field in  link:Cargo.toml[]. We will not support any Rust version older than the MSRV after we update it. They may still work, or fail to compile or execute rsjudge correctly.
+
+[NOTE]
+.To maintainers:
+====
+When MSRV is updated, be sure to update the link:.github/workflows/building.yml[building workflow] at the same time.
+====
+
 === Install dependencies
 
 You can install Rust toolchain with `rustup`:

README.zh-CN.adoc

@@ -22,6 +22,10 @@ xref:README.adoc[English]
 * 支持使用插件进行扩展。
 * 使用 Rust🦀编写，速度极快，安全性高。
 
+== 发音和拼写
+
+"rsjudge" 是 "Rust" 和 "judge" 的组合，发音为 "R-S-judge"。单词应该以小写字母书写，单词中间无空格，即使在标题或句子开头也是如此。
+
 == 目录结构
 
 `src/`::
@@ -51,14 +55,21 @@ https://mango-dune-07a8b7110.1.azurestaticapps.net/?repo=NJUPT-SAST%2Frsjudge[
 
 === 先决条件
 
-* Rust 1.74 或更高版本。
+* 符合 <<msrv, MSRV>> 的 Rust 工具链。
 * Linux 内核 >= 4.5
 ** 这是为了支持 Seccomp BPF。
 * 对于 gRPC 支持（在 `grpc` 特性下）
 ** https://github.com/protocolbuffers/protobuf?tab=readme-ov-file#protobuf-compiler-installation[`protoc`] >= 3.15,
 ** https://github.com/bufbuild/buf/[`buf`] 用于 gRPC 依赖管理。
 * 对于 `.deb` 包的生成，需要安装了 `dpkg-dev` 和 `liblzma-dev` 的 Debian/Ubuntu 系统。
 
+[#msrv]
+==== MSRV（最低支持的 Rust 版本）
+
+rsjudge 采取 N - 2 的 MSRV 策略，其中 N 是当前的 Rust 稳定版本。例如，如果当前的 Rust 稳定版本是 1.79，则 MSRV 将会被设置为 1.77。
+
+当前的 MSRV 可以从 link:Cargo.toml[] 中的 `rust-version` 字段中找到。在更新 MSRV 后，我们将不再支持任何比其更旧的 Rust 版本。这些版本可能仍然可以工作，或者无法正确编译或运行 rsjudge。
+
 === 安装额外的依赖
 
 ==== Debian/Ubuntu