Check MSRV in CI

Author: djc

.github/workflows/ci.yml

@@ -86,6 +86,15 @@ jobs:
         with:
           exclude: rustls-cert-gen
 
+  msrv:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: 1.71.0
+      - run: cargo check --locked --lib --all-features
+
   build-windows:
     runs-on: windows-latest
     env:

Cargo.toml

@@ -12,6 +12,7 @@ x509-parser = "0.17"
 [workspace.package]
 license = "MIT OR Apache-2.0"
 edition = "2021"
+rust-version = "1.71"
 readme = "README.md"
 description = "Rust X.509 certificate generator"
 repository = "https://github.com/rustls/rcgen"

rcgen/Cargo.toml

@@ -7,6 +7,7 @@ repository.workspace = true
 readme.workspace = true
 license.workspace = true
 edition.workspace = true
+rust-version.workspace = true
 keywords.workspace = true
 
 [[example]]

rustls-cert-gen/Cargo.toml

@@ -7,6 +7,7 @@ homepage = "https://github.com/rustls/rcgen/tree/main/rustls-cert-gen"
 repository = "https://github.com/rustls/rcgen"
 license.workspace = true
 edition.workspace = true
+rust-version.workspace = true
 keywords.workspace = true
 
 [features]