Raise required compiler to Rust 1.71

Author: dtolnay

.github/workflows/ci.yml

@@ -43,7 +43,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        rust: [stable, beta, 1.82.0, 1.70.0]
+        rust: [stable, beta, 1.82.0, 1.71.0]
         include:
           - rust: nightly
             components: rustc-dev
@@ -86,7 +86,7 @@ jobs:
       - run: cargo check ${{env.target}} --no-default-features --features 'full fold visit visit-mut parsing printing'
       - if: matrix.components == 'rustc-dev'
         run: cargo check --benches --all-features --release
-      - if: matrix.rust != '1.70.0'
+      - if: matrix.rust != '1.71.0'
         run: cargo check ${{env.target}} --manifest-path json/Cargo.toml --no-default-features
 
   examples:

Cargo.toml

@@ -18,7 +18,7 @@ include = [
 keywords = ["macros", "syn"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/dtolnay/syn"
-rust-version = "1.70"
+rust-version = "1.71"
 
 [features]
 default = ["derive", "parsing", "printing", "clone-impls", "proc-macro"]