Auto merge of #103337 - flip1995:clippyup, r=Manishearth

Update Clippy

r? `@Manishearth`

Author: bors

src/tools/clippy/.github/workflows/clippy.yml

@@ -25,6 +25,7 @@ env:
   CARGO_TARGET_DIR: '${{ github.workspace }}/target'
   NO_FMT_TEST: 1
   CARGO_INCREMENTAL: 0
+  CARGO_UNSTABLE_SPARSE_REGISTRY: true
 
 jobs:
   base:

src/tools/clippy/.github/workflows/clippy_bors.yml

@@ -11,6 +11,7 @@ env:
   CARGO_TARGET_DIR: '${{ github.workspace }}/target'
   NO_FMT_TEST: 1
   CARGO_INCREMENTAL: 0
+  CARGO_UNSTABLE_SPARSE_REGISTRY: true
 
 defaults:
   run:

src/tools/clippy/.github/workflows/clippy_dev.yml

@@ -15,6 +15,8 @@ on:
 
 env:
   RUST_BACKTRACE: 1
+  CARGO_INCREMENTAL: 0
+  CARGO_UNSTABLE_SPARSE_REGISTRY: true
 
 jobs:
   clippy_dev:

src/tools/clippy/CHANGELOG.md

@@ -3735,6 +3735,7 @@ Released 2018-09-13
 [`approx_constant`]: https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
 [`arithmetic_side_effects`]: https://rust-lang.github.io/rust-clippy/master/index.html#arithmetic_side_effects
 [`as_conversions`]: https://rust-lang.github.io/rust-clippy/master/index.html#as_conversions
+[`as_ptr_cast_mut`]: https://rust-lang.github.io/rust-clippy/master/index.html#as_ptr_cast_mut
 [`as_underscore`]: https://rust-lang.github.io/rust-clippy/master/index.html#as_underscore
 [`assertions_on_constants`]: https://rust-lang.github.io/rust-clippy/master/index.html#assertions_on_constants
 [`assertions_on_result_states`]: https://rust-lang.github.io/rust-clippy/master/index.html#assertions_on_result_states
@@ -3772,6 +3773,7 @@ Released 2018-09-13
 [`cast_enum_constructor`]: https://rust-lang.github.io/rust-clippy/master/index.html#cast_enum_constructor
 [`cast_enum_truncation`]: https://rust-lang.github.io/rust-clippy/master/index.html#cast_enum_truncation
 [`cast_lossless`]: https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
+[`cast_nan_to_int`]: https://rust-lang.github.io/rust-clippy/master/index.html#cast_nan_to_int
 [`cast_possible_truncation`]: https://rust-lang.github.io/rust-clippy/master/index.html#cast_possible_truncation
 [`cast_possible_wrap`]: https://rust-lang.github.io/rust-clippy/master/index.html#cast_possible_wrap
 [`cast_precision_loss`]: https://rust-lang.github.io/rust-clippy/master/index.html#cast_precision_loss
@@ -3988,6 +3990,7 @@ Released 2018-09-13
 [`manual_async_fn`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_async_fn
 [`manual_bits`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_bits
 [`manual_clamp`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_clamp
+[`manual_filter`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_filter
 [`manual_filter_map`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_filter_map
 [`manual_find`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_find
 [`manual_find_map`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_find_map
@@ -4046,6 +4049,7 @@ Released 2018-09-13
 [`missing_panics_doc`]: https://rust-lang.github.io/rust-clippy/master/index.html#missing_panics_doc
 [`missing_safety_doc`]: https://rust-lang.github.io/rust-clippy/master/index.html#missing_safety_doc
 [`missing_spin_loop`]: https://rust-lang.github.io/rust-clippy/master/index.html#missing_spin_loop
+[`missing_trait_methods`]: https://rust-lang.github.io/rust-clippy/master/index.html#missing_trait_methods
 [`mistyped_literal_suffixes`]: https://rust-lang.github.io/rust-clippy/master/index.html#mistyped_literal_suffixes
 [`mixed_case_hex_literals`]: https://rust-lang.github.io/rust-clippy/master/index.html#mixed_case_hex_literals
 [`mixed_read_write_in_expression`]: https://rust-lang.github.io/rust-clippy/master/index.html#mixed_read_write_in_expression
@@ -4131,6 +4135,7 @@ Released 2018-09-13
 [`panic_in_result_fn`]: https://rust-lang.github.io/rust-clippy/master/index.html#panic_in_result_fn
 [`panic_params`]: https://rust-lang.github.io/rust-clippy/master/index.html#panic_params
 [`panicking_unwrap`]: https://rust-lang.github.io/rust-clippy/master/index.html#panicking_unwrap
+[`partial_pub_fields`]: https://rust-lang.github.io/rust-clippy/master/index.html#partial_pub_fields
 [`partialeq_ne_impl`]: https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_ne_impl
 [`partialeq_to_none`]: https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
 [`path_buf_push_overwrite`]: https://rust-lang.github.io/rust-clippy/master/index.html#path_buf_push_overwrite
@@ -4312,6 +4317,7 @@ Released 2018-09-13
 [`unstable_as_slice`]: https://rust-lang.github.io/rust-clippy/master/index.html#unstable_as_slice
 [`unused_async`]: https://rust-lang.github.io/rust-clippy/master/index.html#unused_async
 [`unused_collect`]: https://rust-lang.github.io/rust-clippy/master/index.html#unused_collect
+[`unused_format_specs`]: https://rust-lang.github.io/rust-clippy/master/index.html#unused_format_specs
 [`unused_io_amount`]: https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
 [`unused_label`]: https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
 [`unused_peekable`]: https://rust-lang.github.io/rust-clippy/master/index.html#unused_peekable

src/tools/clippy/CONTRIBUTING.md

@@ -29,7 +29,7 @@ All contributors are expected to follow the [Rust Code of Conduct].
 
 ## The Clippy book
 
-If you're new to Clippy and don't know where to start the [Clippy book] includes
+If you're new to Clippy and don't know where to start, the [Clippy book] includes
 a [developer guide] and is a good place to start your journey.
 
 [Clippy book]: https://doc.rust-lang.org/nightly/clippy/index.html

src/tools/clippy/book/src/development/adding_lints.md

@@ -478,8 +478,27 @@ impl<'tcx> LateLintPass<'tcx> for ManualStrip {
 ```
 
 Once the `msrv` is added to the lint, a relevant test case should be added to
-`tests/ui/min_rust_version_attr.rs` which verifies that the lint isn't emitted
-if the project's MSRV is lower.
+the lint's test file, `tests/ui/manual_strip.rs` in this example. It should
+have a case for the version below the MSRV and one with the same contents but
+for the MSRV version itself.
+
+```rust
+#![feature(custom_inner_attributes)]
+
+...
+
+fn msrv_1_44() {
+    #![clippy::msrv = "1.44"]
+
+    /* something that would trigger the lint */
+}
+
+fn msrv_1_45() {
+    #![clippy::msrv = "1.45"]
+
+    /* something that would trigger the lint */
+}
+```
 
 As a last step, the lint should be added to the lint documentation. This is done
 in `clippy_lints/src/utils/conf.rs`:

src/tools/clippy/book/src/development/basics.md

@@ -69,7 +69,7 @@ the reference file with:
 cargo dev bless
 ```
 
-For example, this is necessary, if you fix a typo in an error message of a lint
+For example, this is necessary if you fix a typo in an error message of a lint,
 or if you modify a test file to add a test case.
 
 > _Note:_ This command may update more files than you intended. In that case
@@ -101,8 +101,9 @@ cargo dev setup intellij
 cargo dev dogfood
 ```
 
-More about intellij command usage and reasons
-[here](https://github.com/rust-lang/rust-clippy/blob/master/CONTRIBUTING.md#intellij-rust)
+More about [intellij] command usage and reasons.
+
+[intellij]: https://github.com/rust-lang/rust-clippy/blob/master/CONTRIBUTING.md#intellij-rust
 
 ## lintcheck
 

src/tools/clippy/clippy_dev/src/serve.rs

@@ -49,7 +49,7 @@ fn mtime(path: impl AsRef<Path>) -> SystemTime {
             .into_iter()
             .flatten()
             .flatten()
-            .map(|entry| mtime(&entry.path()))
+            .map(|entry| mtime(entry.path()))
             .max()
             .unwrap_or(SystemTime::UNIX_EPOCH)
     } else {

src/tools/clippy/clippy_dev/src/setup/intellij.rs

@@ -36,9 +36,8 @@ impl ClippyProjectInfo {
 }
 
 pub fn setup_rustc_src(rustc_path: &str) {
-    let rustc_source_dir = match check_and_get_rustc_dir(rustc_path) {
-        Ok(path) => path,
-        Err(_) => return,
+    let Ok(rustc_source_dir) = check_and_get_rustc_dir(rustc_path) else {
+        return
     };
 
     for project in CLIPPY_PROJECTS {
@@ -172,24 +171,18 @@ pub fn remove_rustc_src() {
 }
 
 fn remove_rustc_src_from_project(project: &ClippyProjectInfo) -> bool {
-    let mut cargo_content = if let Ok(content) = read_project_file(project.cargo_file) {
-        content
-    } else {
+    let Ok(mut cargo_content) = read_project_file(project.cargo_file) else {
         return false;
     };
-    let section_start = if let Some(section_start) = cargo_content.find(RUSTC_PATH_SECTION) {
-        section_start
-    } else {
+    let Some(section_start) = cargo_content.find(RUSTC_PATH_SECTION) else {
         println!(
             "info: dependencies could not be found in `{}` for {}, skipping file",
             project.cargo_file, project.name
         );
         return true;
     };
 
-    let end_point = if let Some(end_point) = cargo_content.find(DEPENDENCIES_SECTION) {
-        end_point
-    } else {
+    let Some(end_point) = cargo_content.find(DEPENDENCIES_SECTION) else {
         eprintln!(
             "error: the end of the rustc dependencies section could not be found in `{}`",
             project.cargo_file

src/tools/clippy/clippy_dev/src/update_lints.rs

@@ -128,7 +128,7 @@ fn generate_lint_files(
     for (lint_group, lints) in Lint::by_lint_group(usable_lints.into_iter().chain(internal_lints)) {
         let content = gen_lint_group_list(&lint_group, lints.iter());
         process_file(
-            &format!("clippy_lints/src/lib.register_{lint_group}.rs"),
+            format!("clippy_lints/src/lib.register_{lint_group}.rs"),
             update_mode,
             &content,
         );
@@ -869,13 +869,11 @@ fn clippy_lints_src_files() -> impl Iterator<Item = (PathBuf, DirEntry)> {
 macro_rules! match_tokens {
     ($iter:ident, $($token:ident $({$($fields:tt)*})? $(($capture:ident))?)*) => {
          {
-            $($(let $capture =)? if let Some(LintDeclSearchResult {
+            $(#[allow(clippy::redundant_pattern)] let Some(LintDeclSearchResult {
                     token_kind: TokenKind::$token $({$($fields)*})?,
-                    content: _x,
+                    content: $($capture @)? _,
                     ..
-            }) = $iter.next() {
-                _x
-            } else {
+            }) = $iter.next() else {
                 continue;
             };)*
             #[allow(clippy::unused_unit)]