Update rust toolchain to 2022-05-17

Status: Compilation succeeds but regression fails due to new intrinsic.

Relevant changes:

- rust-lang/rust#95837
- rust-lang/rust#95562
- rust-lang/rust#96883

kani-compiler/src/codegen_cprover_gotoc/codegen/function.rs

@@ -243,9 +243,8 @@ impl<'tcx> GotocCtx<'tcx> {
     ///
     /// Handle all attributes i.e. `#[kani::x]` (which kani_macros translates to `#[kanitool::x]` for us to handle here)
     fn handle_kanitool_attributes(&mut self) {
-        let all_attributes = self.tcx.get_attrs(self.current_fn().instance().def_id());
+        let all_attributes = self.tcx.get_attrs_unchecked(self.current_fn().instance().def_id());
         let (proof_attributes, other_attributes) = partition_kanitool_attributes(all_attributes);
-
         if proof_attributes.is_empty() && !other_attributes.is_empty() {
             self.tcx.sess.span_err(
                 other_attributes[0].1.span,

kani-compiler/src/main.rs

@@ -7,7 +7,6 @@
 //! Like miri, clippy, and other tools developed on the top of rustc, we rely on the
 //! rustc_private feature and a specific version of rustc.
 #![deny(warnings)]
-#![feature(bool_to_option)]
 #![feature(crate_visibility_modifier)]
 #![feature(extern_types)]
 #![feature(nll)]

rust-toolchain.toml

@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0 OR MIT
 
 [toolchain]
-channel = "nightly-2022-05-03"
+channel = "nightly-2022-05-17"
 components = ["llvm-tools-preview", "rustc-dev", "rust-src", "rustfmt"]

tools/bookrunner/librustdoc/clean/inline.rs

@@ -26,7 +26,7 @@ use crate::clean::{
 use crate::core::DocContext;
 use crate::formats::item_type::ItemType;
 
-type Attrs<'hir> = rustc_middle::ty::Attributes<'hir>;
+type Attrs<'hir> = &'hir [ast::Attribute];
 
 /// Attempt to inline a definition into this AST.
 ///
@@ -159,7 +159,7 @@ crate fn try_inline_glob(
 }
 
 fn load_attrs<'hir>(cx: &DocContext<'hir>, did: DefId) -> Attrs<'hir> {
-    cx.tcx.get_attrs(did)
+    cx.tcx.get_attrs_unchecked(did)
 }
 
 /// Record an external fully qualified name in the external_paths cache.
@@ -685,7 +685,7 @@ crate fn record_extern_trait(cx: &mut DocContext<'_>, did: DefId) {
 
     let trait_ = clean::TraitWithExtraInfo {
         trait_,
-        is_notable: clean::utils::has_doc_flag(cx.tcx.get_attrs(did), sym::notable_trait),
+        is_notable: clean::utils::has_doc_flag(cx.tcx, did, sym::notable_trait),
     };
     cx.external_traits.borrow_mut().insert(did, trait_);
     cx.active_extern_traits.remove(&did);

tools/bookrunner/librustdoc/clean/mod.rs

@@ -19,7 +19,7 @@ use rustc_hir::def::{CtorKind, DefKind, Res};
 use rustc_hir::def_id::{DefId, CRATE_DEF_INDEX, LOCAL_CRATE};
 use rustc_middle::middle::resolve_lifetime as rl;
 use rustc_middle::ty::subst::{InternalSubsts, Subst};
-use rustc_middle::ty::{self, AdtKind, DefIdTree, Lift, Ty, TyCtxt};
+use rustc_middle::ty::{self, AdtKind, DefIdTree, EarlyBinder, Lift, Ty, TyCtxt};
 use rustc_middle::{bug, span_bug};
 use rustc_span::hygiene::{AstPass, MacroKind};
 use rustc_span::symbol::{kw, sym, Ident, Symbol};
@@ -1544,7 +1544,7 @@ impl<'tcx> Clean<Type> for Ty<'tcx> {
                     .tcx
                     .explicit_item_bounds(def_id)
                     .iter()
-                    .map(|(bound, _)| bound.subst(cx.tcx, substs))
+                    .map(|(bound, _)| EarlyBinder(*bound).subst(cx.tcx, substs))
                     .collect::<Vec<_>>();
                 let mut regions = vec![];
                 let mut has_sized = false;

tools/bookrunner/librustdoc/clean/types.rs

@@ -197,7 +197,7 @@ impl Item {
         kind: ItemKind,
         cx: &mut DocContext<'_>,
     ) -> Item {
-        let ast_attrs = cx.tcx.get_attrs(def_id);
+        let ast_attrs = cx.tcx.get_attrs_unchecked(def_id);
 
         Self::from_def_id_and_attrs_and_parts(def_id, name, kind, box ast_attrs.clean(cx), cx)
     }

tools/bookrunner/librustdoc/clean/utils.rs

@@ -287,10 +287,9 @@ where
 ///
 /// This function exists because it runs on `hir::Attributes` whereas the other is a
 /// `clean::Attributes` method.
-crate fn has_doc_flag(attrs: ty::Attributes<'_>, flag: Symbol) -> bool {
-    attrs.iter().any(|attr| {
-        attr.has_name(sym::doc)
-            && attr.meta_item_list().map_or(false, |l| rustc_attr::list_contains_name(&l, flag))
+crate fn has_doc_flag(tcx: TyCtxt<'_>, did: DefId, flag: Symbol) -> bool {
+    tcx.get_attrs(did, sym::doc).any(|attr| {
+        attr.meta_item_list().map_or(false, |l| rustc_attr::list_contains_name(&l, flag))
     })
 }