Rustup (#15892)

r? @ghost

changelog: none

clippy_lints/src/doc/broken_link.rs

@@ -1,6 +1,6 @@
 use clippy_utils::diagnostics::span_lint;
-use pulldown_cmark::BrokenLink as PullDownBrokenLink;
 use rustc_lint::LateContext;
+use rustc_resolve::rustdoc::pulldown_cmark::BrokenLink as PullDownBrokenLink;
 use rustc_resolve::rustdoc::{DocFragment, source_span_for_markdown_range};
 use rustc_span::{BytePos, Pos, Span};
 

clippy_lints/src/doc/mod.rs

@@ -4,19 +4,21 @@ use clippy_config::Conf;
 use clippy_utils::attrs::is_doc_hidden;
 use clippy_utils::diagnostics::{span_lint, span_lint_and_help, span_lint_and_then};
 use clippy_utils::{is_entrypoint_fn, is_trait_impl_item};
-use pulldown_cmark::Event::{
-    Code, DisplayMath, End, FootnoteReference, HardBreak, Html, InlineHtml, InlineMath, Rule, SoftBreak, Start,
-    TaskListMarker, Text,
-};
-use pulldown_cmark::Tag::{BlockQuote, CodeBlock, FootnoteDefinition, Heading, Item, Link, Paragraph};
-use pulldown_cmark::{BrokenLink, CodeBlockKind, CowStr, Options, TagEnd};
 use rustc_data_structures::fx::FxHashSet;
 use rustc_errors::Applicability;
 use rustc_hir::{Attribute, ImplItemKind, ItemKind, Node, Safety, TraitItemKind};
 use rustc_lint::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext};
+use rustc_resolve::rustdoc::pulldown_cmark::Event::{
+    Code, DisplayMath, End, FootnoteReference, HardBreak, Html, InlineHtml, InlineMath, Rule, SoftBreak, Start,
+    TaskListMarker, Text,
+};
+use rustc_resolve::rustdoc::pulldown_cmark::Tag::{
+    BlockQuote, CodeBlock, FootnoteDefinition, Heading, Item, Link, Paragraph,
+};
+use rustc_resolve::rustdoc::pulldown_cmark::{BrokenLink, CodeBlockKind, CowStr, Options, TagEnd};
 use rustc_resolve::rustdoc::{
-    DocFragment, add_doc_fragment, attrs_to_doc_fragments, main_body_opts, source_span_for_markdown_range,
-    span_of_fragments,
+    DocFragment, add_doc_fragment, attrs_to_doc_fragments, main_body_opts, pulldown_cmark,
+    source_span_for_markdown_range, span_of_fragments,
 };
 use rustc_session::impl_lint_pass;
 use rustc_span::Span;

clippy_lints/src/future_not_send.rs

@@ -90,7 +90,7 @@ impl<'tcx> LateLintPass<'tcx> for FutureNotSend {
             let ocx = ObligationCtxt::new_with_diagnostics(&infcx);
             let cause = traits::ObligationCause::misc(span, fn_def_id);
             ocx.register_bound(cause, cx.param_env, ret_ty, send_trait);
-            let send_errors = ocx.select_all_or_error();
+            let send_errors = ocx.evaluate_obligations_error_on_ambiguity();
 
             // Allow errors that try to prove `Send` for types that "mention" a generic parameter at the "top
             // level".

clippy_lints/src/lib.rs

@@ -27,9 +27,6 @@
     rustc::internal
 )]
 
-// FIXME: switch to something more ergonomic here, once available.
-// (Currently there is no way to opt into sysroot crates without `extern crate`.)
-extern crate pulldown_cmark;
 extern crate rustc_abi;
 extern crate rustc_arena;
 extern crate rustc_ast;
@@ -53,8 +50,6 @@ extern crate rustc_session;
 extern crate rustc_span;
 extern crate rustc_target;
 extern crate rustc_trait_selection;
-extern crate smallvec;
-extern crate thin_vec;
 
 #[macro_use]
 extern crate clippy_utils;

clippy_lints/src/methods/ip_constant.rs

@@ -1,10 +1,10 @@
 use clippy_utils::consts::{ConstEvalCtxt, Constant};
 use clippy_utils::diagnostics::span_lint_and_then;
+use rustc_data_structures::smallvec::SmallVec;
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind, QPath, TyKind};
 use rustc_lint::LateContext;
 use rustc_span::sym;
-use smallvec::SmallVec;
 
 use super::IP_CONSTANT;
 

clippy_lints/src/unnested_or_patterns.rs

@@ -9,6 +9,7 @@ use rustc_ast::PatKind::*;
 use rustc_ast::mut_visit::*;
 use rustc_ast::{self as ast, DUMMY_NODE_ID, Mutability, Pat, PatKind};
 use rustc_ast_pretty::pprust;
+use rustc_data_structures::thin_vec::{ThinVec, thin_vec};
 use rustc_errors::Applicability;
 use rustc_lint::{EarlyContext, EarlyLintPass};
 use rustc_session::impl_lint_pass;
@@ -17,7 +18,6 @@ use rustc_span::DUMMY_SP;
 use std::boxed::Box;
 use std::cell::Cell;
 use std::mem;
-use thin_vec::{ThinVec, thin_vec};
 
 declare_clippy_lint! {
     /// ### What it does

clippy_utils/README.md

@@ -8,7 +8,7 @@ This crate is only guaranteed to build with this `nightly` toolchain:
 
 <!-- begin autogenerated nightly -->
 ```
-nightly-2025-10-06
+nightly-2025-10-16
 ```
 <!-- end autogenerated nightly -->
 

clippy_utils/src/consts.rs

@@ -4,8 +4,9 @@
 //! executable MIR bodies, so we have to do this instead.
 #![expect(clippy::float_cmp)]
 
+use crate::res::MaybeDef;
 use crate::source::{SpanRangeExt, walk_span_to_context};
-use crate::{clip, is_direct_expn_of, paths, sext, sym, unsext};
+use crate::{clip, is_direct_expn_of, sext, sym, unsext};
 
 use rustc_abi::Size;
 use rustc_apfloat::Float;
@@ -805,10 +806,10 @@ impl<'tcx> ConstEvalCtxt<'tcx> {
                                 | sym::i128_legacy_const_max
                         )
                     ) || self.tcx.opt_parent(did).is_some_and(|parent| {
-                        paths::F16_CONSTS.matches(&self.tcx, parent)
-                            || paths::F32_CONSTS.matches(&self.tcx, parent)
-                            || paths::F64_CONSTS.matches(&self.tcx, parent)
-                            || paths::F128_CONSTS.matches(&self.tcx, parent)
+                        parent.is_diag_item(&self.tcx, sym::f16_consts_mod)
+                            || parent.is_diag_item(&self.tcx, sym::f32_consts_mod)
+                            || parent.is_diag_item(&self.tcx, sym::f64_consts_mod)
+                            || parent.is_diag_item(&self.tcx, sym::f128_consts_mod)
                     })) =>
             {
                 did

clippy_utils/src/lib.rs

@@ -25,7 +25,6 @@
 
 // FIXME: switch to something more ergonomic here, once available.
 // (Currently there is no way to opt into sysroot crates without `extern crate`.)
-extern crate indexmap;
 extern crate rustc_abi;
 extern crate rustc_ast;
 extern crate rustc_attr_parsing;
@@ -49,7 +48,6 @@ extern crate rustc_mir_dataflow;
 extern crate rustc_session;
 extern crate rustc_span;
 extern crate rustc_trait_selection;
-extern crate smallvec;
 
 pub mod ast_utils;
 pub mod attrs;
@@ -93,6 +91,7 @@ use rustc_abi::Integer;
 use rustc_ast::ast::{self, LitKind, RangeLimits};
 use rustc_ast::join_path_syms;
 use rustc_data_structures::fx::FxHashMap;
+use rustc_data_structures::indexmap;
 use rustc_data_structures::packed::Pu128;
 use rustc_data_structures::unhash::UnindexMap;
 use rustc_hir::LangItem::{OptionNone, OptionSome, ResultErr, ResultOk};

clippy_utils/src/msrvs.rs

@@ -2,12 +2,12 @@ use crate::sym;
 use rustc_ast::Attribute;
 use rustc_ast::attr::AttributeExt;
 use rustc_attr_parsing::parse_version;
+use rustc_data_structures::smallvec::SmallVec;
 use rustc_hir::RustcVersion;
 use rustc_lint::LateContext;
 use rustc_session::Session;
 use rustc_span::Symbol;
 use serde::Deserialize;
-use smallvec::SmallVec;
 use std::iter::once;
 use std::sync::atomic::{AtomicBool, Ordering};
 

clippy_utils/src/paths.rs

@@ -131,11 +131,6 @@ path_macros! {
     macro_path: PathNS::Macro,
 }
 
-pub static F16_CONSTS: PathLookup = type_path!(core::f16::consts);
-pub static F32_CONSTS: PathLookup = type_path!(core::f32::consts);
-pub static F64_CONSTS: PathLookup = type_path!(core::f64::consts);
-pub static F128_CONSTS: PathLookup = type_path!(core::f128::consts);
-
 // Paths in external crates
 pub static FUTURES_IO_ASYNCREADEXT: PathLookup = type_path!(futures_util::AsyncReadExt);
 pub static FUTURES_IO_ASYNCWRITEEXT: PathLookup = type_path!(futures_util::AsyncWriteExt);

clippy_utils/src/qualify_min_const_fn.rs

@@ -232,9 +232,7 @@ fn check_statement<'tcx>(
 
         StatementKind::FakeRead(box (_, place)) => check_place(cx, *place, span, body, msrv),
         // just an assignment
-        StatementKind::SetDiscriminant { place, .. } | StatementKind::Deinit(place) => {
-            check_place(cx, **place, span, body, msrv)
-        },
+        StatementKind::SetDiscriminant { place, .. } => check_place(cx, **place, span, body, msrv),
 
         StatementKind::Intrinsic(box NonDivergingIntrinsic::Assume(op)) => check_operand(cx, op, span, body, msrv),
 
@@ -475,7 +473,7 @@ fn is_ty_const_destruct<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, body: &Body<'tcx>
 
         let ocx = ObligationCtxt::new(&infcx);
         ocx.register_obligations(impl_src.nested_obligations());
-        ocx.select_all_or_error().is_empty()
+        ocx.evaluate_obligations_error_on_ambiguity().is_empty()
     }
 
     !ty.needs_drop(tcx, ConstCx::new(tcx, body).typing_env)

clippy_utils/src/sym.rs

@@ -120,7 +120,6 @@ generate! {
     collapsible_if,
     collect,
     const_ptr,
-    consts,
     contains,
     copied,
     copy_from,

rust-toolchain.toml

@@ -1,6 +1,6 @@
 [toolchain]
 # begin autogenerated nightly
-channel = "nightly-2025-10-06"
+channel = "nightly-2025-10-16"
 # end autogenerated nightly
 components = ["cargo", "llvm-tools", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"]
 profile = "minimal"

tests/ui/needless_match.fixed

@@ -1,7 +1,7 @@
 #![warn(clippy::needless_match)]
 #![allow(clippy::manual_map)]
 #![allow(dead_code)]
-
+#![allow(unused)]
 #[derive(Clone, Copy)]
 enum Simple {
     A,

tests/ui/needless_match.rs

@@ -1,7 +1,7 @@
 #![warn(clippy::needless_match)]
 #![allow(clippy::manual_map)]
 #![allow(dead_code)]
-
+#![allow(unused)]
 #[derive(Clone, Copy)]
 enum Simple {
     A,

tests/ui/option_env_unwrap.stderr

@@ -19,7 +19,7 @@ LL |     let _ = option_env!("PATH").expect("environment variable PATH isn't set
 error: this will panic at run-time if the environment variable doesn't exist at compile-time
   --> tests/ui/option_env_unwrap.rs:14:13
    |
-LL |     let _ = option_env!("__Y__do_not_use").unwrap(); // This test only works if you don't have a __Y__do_not_use env variable in your env...
+LL |     let _ = option_env!("__Y__do_not_use").unwrap(); // This test only works if you don't have a __Y__do_not_use env variable in you...
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: consider using the `env!` macro instead

tests/ui/too_long_first_doc_paragraph.stderr

@@ -42,7 +42,7 @@ LL | | /// gravida non lacinia at, rhoncus eu lacus.
 error: first doc comment paragraph is too long
   --> tests/ui/too_long_first_doc_paragraph.rs:65:1
    |
-LL | / /// Some function. This doc-string paragraph is too long. Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lore...
+LL | / /// Some function. This doc-string paragraph is too long. Lorem Ipsum is simply dummy text of the printing and typesetting industr...
 LL | |
 LL | | ///
 LL | | /// Here's a second paragraph. It would be preferable to put the details here.

tests/ui/useless_conversion.fixed

@@ -1,5 +1,5 @@
 #![deny(clippy::useless_conversion)]
-#![allow(clippy::needless_if, clippy::unnecessary_wraps)]
+#![allow(clippy::needless_if, clippy::unnecessary_wraps, unused)]
 // FIXME(static_mut_refs): Do not allow `static_mut_refs` lint
 #![allow(static_mut_refs)]
 

tests/ui/useless_conversion.rs

@@ -1,5 +1,5 @@
 #![deny(clippy::useless_conversion)]
-#![allow(clippy::needless_if, clippy::unnecessary_wraps)]
+#![allow(clippy::needless_if, clippy::unnecessary_wraps, unused)]
 // FIXME(static_mut_refs): Do not allow `static_mut_refs` lint
 #![allow(static_mut_refs)]