rust-lang · bors · Dec 2, 2021 · Nov 30, 2021 · Nov 30, 2021 · Nov 30, 2021
diff --git a/compiler/rustc_attr/src/builtin.rs b/compiler/rustc_attr/src/builtin.rs
@@ -519,8 +519,10 @@ pub fn eval_condition(
                 [NestedMetaItem::Literal(Lit { kind: LitKind::Str(sym, ..), span, .. })] => {
                     (sym, span)
                 }
-                [NestedMetaItem::Literal(Lit { span, .. })
-                | NestedMetaItem::MetaItem(MetaItem { span, .. })] => {
+                [
+                    NestedMetaItem::Literal(Lit { span, .. })
+                    | NestedMetaItem::MetaItem(MetaItem { span, .. }),
+                ] => {
                     sess.span_diagnostic
                         .struct_span_err(*span, "expected a version literal")
                         .emit();

diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
@@ -977,9 +977,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                 Some(ref name),
                 BorrowExplanation::MustBeValidFor {
                     category:
-                        category
-                        @
-                        (ConstraintCategory::Return(_)
+                        category @ (ConstraintCategory::Return(_)
                         | ConstraintCategory::CallArgument
                         | ConstraintCategory::OpaqueType),
                     from_closure: false,

diff --git a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs
@@ -165,10 +165,13 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
             PlaceRef {
                 local: _,
                 projection:
-                    [.., ProjectionElem::Index(_)
-                    | ProjectionElem::ConstantIndex { .. }
-                    | ProjectionElem::Subslice { .. }
-                    | ProjectionElem::Downcast(..)],
+                    [
+                        ..,
+                        ProjectionElem::Index(_)
+                        | ProjectionElem::ConstantIndex { .. }
+                        | ProjectionElem::Subslice { .. }
+                        | ProjectionElem::Downcast(..),
+                    ],
             } => bug!("Unexpected immutable place."),
         }
 
@@ -217,7 +220,12 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
             PlaceRef {
                 local,
                 projection:
-                    [proj_base @ .., ProjectionElem::Deref, ProjectionElem::Field(field, _), ProjectionElem::Deref],
+                    [
+                        proj_base @ ..,
+                        ProjectionElem::Deref,
+                        ProjectionElem::Field(field, _),
+                        ProjectionElem::Deref,
+                    ],
             } => {
                 err.span_label(span, format!("cannot {ACT}", ACT = act));
 
@@ -763,11 +771,14 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                                                 kind:
                                                     Call(
                                                         _,
-                                                        [Expr {
-                                                            kind: MethodCall(path_segment, ..),
-                                                            hir_id,
-                                                            ..
-                                                        }, ..],
+                                                        [
+                                                            Expr {
+                                                                kind: MethodCall(path_segment, ..),
+                                                                hir_id,
+                                                                ..
+                                                            },
+                                                            ..,
+                                                        ],
                                                     ),
                                                 ..
                                             },

diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs
@@ -769,20 +769,24 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
             let opaque_ty = hir.item(id);
             if let hir::ItemKind::OpaqueTy(hir::OpaqueTy {
                 bounds:
-                    [hir::GenericBound::LangItemTrait(
-                        hir::LangItem::Future,
-                        _,
-                        _,
-                        hir::GenericArgs {
-                            bindings:
-                                [hir::TypeBinding {
-                                    ident: Ident { name: sym::Output, .. },
-                                    kind: hir::TypeBindingKind::Equality { ty },
-                                    ..
-                                }],
-                            ..
-                        },
-                    )],
+                    [
+                        hir::GenericBound::LangItemTrait(
+                            hir::LangItem::Future,
+                            _,
+                            _,
+                            hir::GenericArgs {
+                                bindings:
+                                    [
+                                        hir::TypeBinding {
+                                            ident: Ident { name: sym::Output, .. },
+                                            kind: hir::TypeBindingKind::Equality { ty },
+                                            ..
+                                        },
+                                    ],
+                                ..
+                            },
+                        ),
+                    ],
                 ..
             }) = opaque_ty.kind
             {

diff --git a/compiler/rustc_borrowck/src/lib.rs b/compiler/rustc_borrowck/src/lib.rs
@@ -3,7 +3,6 @@
 #![feature(bool_to_option)]
 #![feature(box_patterns)]
 #![feature(crate_visibility_modifier)]
-#![cfg_attr(bootstrap, feature(format_args_capture))]
 #![feature(in_band_lifetimes)]
 #![feature(iter_zip)]
 #![feature(let_else)]

diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
@@ -1525,14 +1525,12 @@ fn generator_layout_and_saved_local_names(
                 // Deref of the `Pin<&mut Self>` state argument.
                 mir::ProjectionElem::Field(..),
                 mir::ProjectionElem::Deref,
-
                 // Field of a variant of the state.
                 mir::ProjectionElem::Downcast(_, variant),
                 mir::ProjectionElem::Field(field, _),
             ] => {
-                let name = &mut generator_saved_local_names[
-                    generator_layout.variant_fields[variant][field]
-                ];
+                let name = &mut generator_saved_local_names
+                    [generator_layout.variant_fields[variant][field]];
                 if name.is_none() {
                     name.replace(var.name);
                 }

diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs
@@ -6,7 +6,6 @@
 #![feature(crate_visibility_modifier)]
 #![feature(backtrace)]
 #![feature(if_let_guard)]
-#![cfg_attr(bootstrap, feature(format_args_capture))]
 #![feature(iter_zip)]
 #![feature(let_else)]
 #![feature(nll)]

diff --git a/compiler/rustc_expand/src/lib.rs b/compiler/rustc_expand/src/lib.rs
@@ -1,7 +1,6 @@
 #![feature(crate_visibility_modifier)]
 #![feature(decl_macro)]
 #![feature(destructuring_assignment)]
-#![cfg_attr(bootstrap, feature(format_args_capture))]
 #![feature(if_let_guard)]
 #![feature(iter_zip)]
 #![feature(let_else)]

diff --git a/compiler/rustc_expand/src/mbe/macro_parser.rs b/compiler/rustc_expand/src/mbe/macro_parser.rs
@@ -584,9 +584,7 @@ fn inner_parse_loop<'root, 'tt>(
                 //
                 // At the beginning of the loop, if we reach the end of the delimited submatcher,
                 // we pop the stack to backtrack out of the descent.
-                seq
-                @
-                (TokenTree::Delimited(..)
+                seq @ (TokenTree::Delimited(..)
                 | TokenTree::Token(Token { kind: DocComment(..), .. })) => {
                     let lower_elts = mem::replace(&mut item.top_elts, Tt(seq));
                     let idx = item.idx;

diff --git a/compiler/rustc_expand/src/parse/tests.rs b/compiler/rustc_expand/src/parse/tests.rs
@@ -65,24 +65,33 @@ fn string_to_tts_macro() {
         let tts: &[TokenTree] = &tts[..];
 
         match tts {
-            [TokenTree::Token(Token { kind: token::Ident(name_macro_rules, false), .. }), TokenTree::Token(Token { kind: token::Not, .. }), TokenTree::Token(Token { kind: token::Ident(name_zip, false), .. }), TokenTree::Delimited(_, macro_delim, macro_tts)]
-                if name_macro_rules == &kw::MacroRules && name_zip.as_str() == "zip" =>
-            {
+            [
+                TokenTree::Token(Token { kind: token::Ident(name_macro_rules, false), .. }),
+                TokenTree::Token(Token { kind: token::Not, .. }),
+                TokenTree::Token(Token { kind: token::Ident(name_zip, false), .. }),
+                TokenTree::Delimited(_, macro_delim, macro_tts),
+            ] if name_macro_rules == &kw::MacroRules && name_zip.as_str() == "zip" => {
                 let tts = &macro_tts.trees().collect::<Vec<_>>();
                 match &tts[..] {
-                    [TokenTree::Delimited(_, first_delim, first_tts), TokenTree::Token(Token { kind: token::FatArrow, .. }), TokenTree::Delimited(_, second_delim, second_tts)]
-                        if macro_delim == &token::Paren =>
-                    {
+                    [
+                        TokenTree::Delimited(_, first_delim, first_tts),
+                        TokenTree::Token(Token { kind: token::FatArrow, .. }),
+                        TokenTree::Delimited(_, second_delim, second_tts),
+                    ] if macro_delim == &token::Paren => {
                         let tts = &first_tts.trees().collect::<Vec<_>>();
                         match &tts[..] {
-                            [TokenTree::Token(Token { kind: token::Dollar, .. }), TokenTree::Token(Token { kind: token::Ident(name, false), .. })]
-                                if first_delim == &token::Paren && name.as_str() == "a" => {}
+                            [
+                                TokenTree::Token(Token { kind: token::Dollar, .. }),
+                                TokenTree::Token(Token { kind: token::Ident(name, false), .. }),
+                            ] if first_delim == &token::Paren && name.as_str() == "a" => {}
                             _ => panic!("value 3: {:?} {:?}", first_delim, first_tts),
                         }
                         let tts = &second_tts.trees().collect::<Vec<_>>();
                         match &tts[..] {
-                            [TokenTree::Token(Token { kind: token::Dollar, .. }), TokenTree::Token(Token { kind: token::Ident(name, false), .. })]
-                                if second_delim == &token::Paren && name.as_str() == "a" => {}
+                            [
+                                TokenTree::Token(Token { kind: token::Dollar, .. }),
+                                TokenTree::Token(Token { kind: token::Ident(name, false), .. }),
+                            ] if second_delim == &token::Paren && name.as_str() == "a" => {}
                             _ => panic!("value 4: {:?} {:?}", second_delim, second_tts),
                         }
                     }

diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs
@@ -30,7 +30,6 @@
 #![feature(bool_to_option)]
 #![feature(box_patterns)]
 #![feature(crate_visibility_modifier)]
-#![cfg_attr(bootstrap, feature(format_args_capture))]
 #![feature(iter_order_by)]
 #![feature(iter_zip)]
 #![feature(never_type)]

diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs
@@ -1111,7 +1111,11 @@ impl<'tcx> TyCtxt<'tcx> {
             };
             debug!("layout_scalar_valid_range: attr={:?}", attr);
             if let Some(
-                &[ast::NestedMetaItem::Literal(ast::Lit { kind: ast::LitKind::Int(a, _), .. })],
+                &[
+                    ast::NestedMetaItem::Literal(ast::Lit {
+                        kind: ast::LitKind::Int(a, _), ..
+                    }),
+                ],
             ) = attr.meta_item_list().as_deref()
             {
                 Bound::Included(a)

diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs
@@ -356,14 +356,17 @@ impl<'tcx> ClosureSubsts<'tcx> {
     /// The ordering assumed here must match that used by `ClosureSubsts::new` above.
     fn split(self) -> ClosureSubstsParts<'tcx, GenericArg<'tcx>> {
         match self.substs[..] {
-            [ref parent_substs @ .., closure_kind_ty, closure_sig_as_fn_ptr_ty, tupled_upvars_ty] => {
-                ClosureSubstsParts {
-                    parent_substs,
-                    closure_kind_ty,
-                    closure_sig_as_fn_ptr_ty,
-                    tupled_upvars_ty,
-                }
-            }
+            [
+                ref parent_substs @ ..,
+                closure_kind_ty,
+                closure_sig_as_fn_ptr_ty,
+                tupled_upvars_ty,
+            ] => ClosureSubstsParts {
+                parent_substs,
+                closure_kind_ty,
+                closure_sig_as_fn_ptr_ty,
+                tupled_upvars_ty,
+            },
             _ => bug!("closure substs missing synthetics"),
         }
     }

diff --git a/compiler/rustc_passes/src/lib.rs b/compiler/rustc_passes/src/lib.rs
@@ -7,7 +7,6 @@
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(crate_visibility_modifier)]
 #![feature(in_band_lifetimes)]
-#![cfg_attr(bootstrap, feature(format_args_capture))]
 #![feature(iter_zip)]
 #![feature(map_try_insert)]
 #![feature(min_specialization)]

diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs
@@ -13,7 +13,6 @@
 #![feature(drain_filter)]
 #![feature(bool_to_option)]
 #![feature(crate_visibility_modifier)]
-#![cfg_attr(bootstrap, feature(format_args_capture))]
 #![feature(iter_zip)]
 #![feature(let_else)]
 #![feature(never_type)]

diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
@@ -2026,9 +2026,7 @@ impl<'a, 'tcx> InferCtxtPrivExt<'tcx> for InferCtxt<'a, 'tcx> {
         debug!("maybe_suggest_unsized_generics: param={:?}", param);
         match node {
             hir::Node::Item(
-                item
-                @
-                hir::Item {
+                item @ hir::Item {
                     // Only suggest indirection for uses of type parameters in ADTs.
                     kind:
                         hir::ItemKind::Enum(..) | hir::ItemKind::Struct(..) | hir::ItemKind::Union(..),

diff --git a/compiler/rustc_typeck/src/check/coercion.rs b/compiler/rustc_typeck/src/check/coercion.rs
@@ -1126,8 +1126,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         for expr in exprs {
             let expr = expr.as_coercion_site();
             let noop = match self.typeck_results.borrow().expr_adjustments(expr) {
-                &[Adjustment { kind: Adjust::Deref(_), .. }, Adjustment { kind: Adjust::Borrow(AutoBorrow::Ref(_, mutbl_adj)), .. }] =>
-                {
+                &[
+                    Adjustment { kind: Adjust::Deref(_), .. },
+                    Adjustment { kind: Adjust::Borrow(AutoBorrow::Ref(_, mutbl_adj)), .. },
+                ] => {
                     match *self.node_ty(expr.hir_id).kind() {
                         ty::Ref(_, _, mt_orig) => {
                             let mutbl_adj: hir::Mutability = mutbl_adj.into();

diff --git a/compiler/rustc_typeck/src/check/fn_ctxt/_impl.rs b/compiler/rustc_typeck/src/check/fn_ctxt/_impl.rs
@@ -304,20 +304,26 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     // is a valid NeverToAny adjustment, because it can't
                     // be reached.
                     (&[Adjustment { kind: Adjust::NeverToAny, .. }], _) => return,
-                    (&[
-                        Adjustment { kind: Adjust::Deref(_), .. },
-                        Adjustment { kind: Adjust::Borrow(AutoBorrow::Ref(..)), .. },
-                    ], &[
-                        Adjustment { kind: Adjust::Deref(_), .. },
-                        .. // Any following adjustments are allowed.
-                    ]) => {
+                    (
+                        &[
+                            Adjustment { kind: Adjust::Deref(_), .. },
+                            Adjustment { kind: Adjust::Borrow(AutoBorrow::Ref(..)), .. },
+                        ],
+                        &[
+                            Adjustment { kind: Adjust::Deref(_), .. },
+                            .., // Any following adjustments are allowed.
+                        ],
+                    ) => {
                         // A reborrow has no effect before a dereference.
                     }
                     // FIXME: currently we never try to compose autoderefs
                     // and ReifyFnPointer/UnsafeFnPointer, but we could.
-                    _ =>
-                        bug!("while adjusting {:?}, can't compose {:?} and {:?}",
-                             expr, entry.get(), adj)
+                    _ => bug!(
+                        "while adjusting {:?}, can't compose {:?} and {:?}",
+                        expr,
+                        entry.get(),
+                        adj
+                    ),
                 };
                 *entry.get_mut() = adj;
             }

diff --git a/compiler/rustc_typeck/src/check/place_op.rs b/compiler/rustc_typeck/src/check/place_op.rs
@@ -440,8 +440,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             }
 
             // If we have an autoref followed by unsizing at the end, fix the unsize target.
-            if let [.., Adjustment { kind: Adjust::Borrow(AutoBorrow::Ref(..)), .. }, Adjustment { kind: Adjust::Pointer(PointerCast::Unsize), ref mut target }] =
-                adjustments[..]
+            if let [
+                ..,
+                Adjustment { kind: Adjust::Borrow(AutoBorrow::Ref(..)), .. },
+                Adjustment { kind: Adjust::Pointer(PointerCast::Unsize), ref mut target },
+            ] = adjustments[..]
             {
                 *target = method.sig.inputs()[0];
             }

diff --git a/compiler/rustc_typeck/src/check/upvar.rs b/compiler/rustc_typeck/src/check/upvar.rs
@@ -687,15 +687,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                             r
                         ),
                         (
-                            l
-                            @
-                            (ProjectionKind::Index
+                            l @ (ProjectionKind::Index
                             | ProjectionKind::Subslice
                             | ProjectionKind::Deref
                             | ProjectionKind::Field(..)),
-                            r
-                            @
-                            (ProjectionKind::Index
+                            r @ (ProjectionKind::Index
                             | ProjectionKind::Subslice
                             | ProjectionKind::Deref
                             | ProjectionKind::Field(..)),

diff --git a/compiler/rustc_typeck/src/lib.rs b/compiler/rustc_typeck/src/lib.rs
@@ -58,7 +58,6 @@ This API is completely unstable and subject to change.
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(bool_to_option)]
 #![feature(crate_visibility_modifier)]
-#![cfg_attr(bootstrap, feature(format_args_capture))]
 #![feature(if_let_guard)]
 #![feature(in_band_lifetimes)]
 #![feature(is_sorted)]

diff --git a/library/alloc/src/lib.rs b/library/alloc/src/lib.rs
@@ -105,7 +105,6 @@
 #![feature(fmt_internals)]
 #![feature(fn_traits)]
 #![feature(inherent_ascii_escape)]
-#![cfg_attr(bootstrap, feature(format_args_capture))]
 #![feature(inplace_iteration)]
 #![feature(iter_advance_by)]
 #![feature(iter_zip)]