Fixed broken rustc test, segregated nightly only lints

Cargo.toml

@@ -30,6 +30,7 @@ thiserror = "1"
 
 [build-dependencies]
 chrono = "0"
+rustversion = "1"
 
 [dev-dependencies]
 lazy_static = "1"

build.rs

@@ -1,10 +1,20 @@
 use chrono::Utc;
 
 pub fn main() {
+    // These are here so some doc tests work
     let now = Utc::now();
     println!(
         "cargo:rustc-env=VERGEN_BUILD_TIMESTAMP={}",
         now.to_rfc3339()
     );
     println!("cargo:rustc-env=VERGEN_GIT_SEMVER=v3.2.0-86-g95fc0f5");
+    nightly_lints();
 }
+
+#[rustversion::nightly]
+fn nightly_lints() {
+    println!("cargo:rustc-cfg=nightly_lints");
+}
+
+#[rustversion::not(nightly)]
+fn nightly_lints() {}

src/gen.rs

@@ -273,7 +273,7 @@ mod test {
             r#"cargo:rustc-env=VERGEN_RUSTC_COMMIT_HASH=[0-9a-f]{40}"#;
         static ref RUSTC_HT_RE_STR: &'static str = r#"cargo:rustc-env=VERGEN_RUSTC_HOST_TRIPLE=.*"#;
         static ref RUSTC_LLVM_RE_STR: &'static str =
-            r#"cargo:rustc-env=VERGEN_RUSTC_LLVM_VERSION=11.0"#;
+            r#"cargo:rustc-env=VERGEN_RUSTC_LLVM_VERSION=\d{2}\.\d{1}"#;
         static ref RUSTC_SEMVER_RE_STR: &'static str = r#"cargo:rustc-env=VERGEN_RUSTC_SEMVER=(?P<major>0|[1-9]\d*)\.(?P<minor>0|[1-9]\d*)\.(?P<patch>0|[1-9]\d*)(?:-(?P<prerelease>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+(?P<buildmetadata>[0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?"#;
         static ref RUSTC_NIGHTLY_REGEX: Regex = {
             let re_str = vec![

src/lib.rs

@@ -149,7 +149,6 @@
     bare_trait_objects,
     bindings_with_variant_name,
     box_pointers,
-    broken_intra_doc_links,
     cenum_impl_drop_cast,
     clashing_extern_declarations,
     clippy::all,
@@ -173,16 +172,13 @@
     incomplete_features,
     indirect_structural_match,
     inline_no_sanitize,
-    invalid_codeblock_attributes,
-    invalid_html_tags,
     invalid_value,
     irrefutable_let_patterns,
     keyword_idents,
     late_bound_lifetime_arguments,
     macro_use_extern_crate,
     meta_variable_misuse,
     missing_copy_implementations,
-    missing_crate_level_docs,
     missing_debug_implementations,
     // missing_doc_code_examples,
     missing_docs,
@@ -248,6 +244,20 @@
     where_clauses_object_safety,
     while_true,
 )]
+#![cfg(nightly_lints)]
+#![deny(
+    rustdoc::broken_intra_doc_links,
+    rustdoc::invalid_codeblock_attributes,
+    rustdoc::invalid_html_tags,
+    rustdoc::missing_crate_level_docs
+)]
+#![cfg(not(nightly_lints))]
+#![deny(
+    broken_intra_doc_links,
+    invalid_codeblock_attributes,
+    invalid_html_tags,
+    missing_crate_level_docs
+)]
 #![allow(clippy::multiple_crate_versions)]
 
 mod config;