Auto merge of #100324 - Mark-Simulacrum:bootstrap-bump, r=jyn514

Bump bootstrap compiler to 1.64

r? `@jyn514` perhaps?

compiler/rustc_ast/src/lib.rs

@@ -14,7 +14,6 @@
 #![feature(const_trait_impl)]
 #![feature(if_let_guard)]
 #![feature(label_break_value)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(min_specialization)]
 #![feature(negative_impls)]
 #![feature(slice_internals)]

compiler/rustc_ast_lowering/src/lib.rs

@@ -31,7 +31,6 @@
 //! in the HIR, especially for multiple identifiers.
 
 #![feature(box_patterns)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(never_type)]
 #![recursion_limit = "256"]

compiler/rustc_ast_passes/src/lib.rs

@@ -8,7 +8,6 @@
 #![feature(box_patterns)]
 #![feature(if_let_guard)]
 #![feature(iter_is_partitioned)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![recursion_limit = "256"]
 

compiler/rustc_attr/src/lib.rs

@@ -4,7 +4,6 @@
 //! The goal is to move the definition of `MetaItem` and things that don't need to be in `syntax`
 //! to this crate.
 
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 
 #[macro_use]

compiler/rustc_borrowck/src/lib.rs

@@ -2,7 +2,6 @@
 
 #![allow(rustc::potential_query_instability)]
 #![feature(box_patterns)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(min_specialization)]
 #![feature(never_type)]

compiler/rustc_builtin_macros/src/lib.rs

@@ -8,7 +8,6 @@
 #![feature(decl_macro)]
 #![feature(if_let_guard)]
 #![feature(is_sorted)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(proc_macro_internals)]
 #![feature(proc_macro_quote)]

compiler/rustc_codegen_llvm/src/lib.rs

@@ -6,7 +6,6 @@
 
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(hash_raw_entry)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(extern_types)]
 #![feature(once_cell)]

compiler/rustc_const_eval/src/lib.rs

@@ -9,7 +9,6 @@ Rust MIR: a lowered representation of Rust.
 #![feature(control_flow_enum)]
 #![feature(decl_macro)]
 #![feature(exact_size_is_empty)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(map_try_insert)]
 #![feature(min_specialization)]

compiler/rustc_error_messages/src/lib.rs

@@ -1,4 +1,3 @@
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(once_cell)]
 #![feature(rustc_attrs)]
 #![feature(type_alias_impl_trait)]

compiler/rustc_errors/src/lib.rs

@@ -5,7 +5,6 @@
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(drain_filter)]
 #![feature(if_let_guard)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(adt_const_params)]
 #![feature(let_else)]
 #![feature(never_type)]

compiler/rustc_expand/src/lib.rs

@@ -2,7 +2,6 @@
 #![feature(associated_type_bounds)]
 #![feature(associated_type_defaults)]
 #![feature(if_let_guard)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(macro_metavar_expr)]
 #![feature(proc_macro_diagnostic)]

compiler/rustc_infer/src/lib.rs

@@ -18,7 +18,6 @@
 #![feature(control_flow_enum)]
 #![feature(extend_one)]
 #![feature(label_break_value)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(min_specialization)]
 #![feature(never_type)]

compiler/rustc_interface/src/interface.rs

@@ -330,7 +330,7 @@ pub fn create_compiler_and_run<R>(config: Config, f: impl FnOnce(&Compiler) -> R
 }
 
 // JUSTIFICATION: before session exists, only config
-#[cfg_attr(not(bootstrap), allow(rustc::bad_opt_access))]
+#[allow(rustc::bad_opt_access)]
 pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Send) -> R {
     tracing::trace!("run_compiler");
     util::run_in_thread_pool_with_globals(

compiler/rustc_interface/src/tests.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(bootstrap), allow(rustc::bad_opt_access))]
+#![allow(rustc::bad_opt_access)]
 use crate::interface::parse_cfgspecs;
 
 use rustc_data_structures::fx::FxHashSet;

compiler/rustc_interface/src/util.rs

@@ -559,7 +559,7 @@ pub fn collect_crate_types(session: &Session, attrs: &[ast::Attribute]) -> Vec<C
     // command line, then reuse the empty `base` Vec to hold the types that
     // will be found in crate attributes.
     // JUSTIFICATION: before wrapper fn is available
-    #[cfg_attr(not(bootstrap), allow(rustc::bad_opt_access))]
+    #[allow(rustc::bad_opt_access)]
     let mut base = session.opts.crate_types.clone();
     if base.is_empty() {
         base.extend(attr_types);

compiler/rustc_lint/src/lib.rs

@@ -33,7 +33,6 @@
 #![feature(if_let_guard)]
 #![feature(iter_intersperse)]
 #![feature(iter_order_by)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(never_type)]
 #![recursion_limit = "256"]

compiler/rustc_metadata/src/lib.rs

@@ -4,7 +4,6 @@
 #![feature(generators)]
 #![feature(generic_associated_types)]
 #![feature(iter_from_generator)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(once_cell)]
 #![feature(proc_macro_internals)]

compiler/rustc_middle/src/lib.rs

@@ -39,7 +39,6 @@
 #![feature(extern_types)]
 #![feature(new_uninit)]
 #![feature(once_cell)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(min_specialization)]
 #![feature(trusted_len)]

compiler/rustc_mir_build/src/lib.rs

@@ -5,7 +5,6 @@
 #![feature(box_patterns)]
 #![feature(control_flow_enum)]
 #![feature(if_let_guard)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(min_specialization)]
 #![feature(once_cell)]

compiler/rustc_mir_transform/src/lib.rs

@@ -1,6 +1,5 @@
 #![allow(rustc::potential_query_instability)]
 #![feature(box_patterns)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(map_try_insert)]
 #![feature(min_specialization)]

compiler/rustc_parse/src/lib.rs

@@ -3,7 +3,6 @@
 #![feature(array_windows)]
 #![feature(box_patterns)]
 #![feature(if_let_guard)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(never_type)]
 #![feature(rustc_attrs)]

compiler/rustc_passes/src/lib.rs

@@ -7,7 +7,6 @@
 #![allow(rustc::potential_query_instability)]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(iter_intersperse)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(map_try_insert)]
 #![feature(min_specialization)]

compiler/rustc_privacy/src/lib.rs

@@ -5,8 +5,8 @@
 #![feature(try_blocks)]
 #![recursion_limit = "256"]
 #![allow(rustc::potential_query_instability)]
-#![cfg_attr(not(bootstrap), deny(rustc::untranslatable_diagnostic))]
-#![cfg_attr(not(bootstrap), deny(rustc::diagnostic_outside_of_impl))]
+#![deny(rustc::untranslatable_diagnostic)]
+#![deny(rustc::diagnostic_outside_of_impl)]
 
 mod errors;
 

compiler/rustc_resolve/src/lib.rs

@@ -10,7 +10,6 @@
 #![feature(box_patterns)]
 #![feature(drain_filter)]
 #![feature(if_let_guard)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(iter_intersperse)]
 #![feature(let_else)]
 #![feature(never_type)]

compiler/rustc_session/src/config.rs

@@ -949,7 +949,7 @@ fn default_configuration(sess: &Session) -> CrateConfig {
         ret.insert((sym::debug_assertions, None));
     }
     // JUSTIFICATION: before wrapper fn is available
-    #[cfg_attr(not(bootstrap), allow(rustc::bad_opt_access))]
+    #[allow(rustc::bad_opt_access)]
     if sess.opts.crate_types.contains(&CrateType::ProcMacro) {
         ret.insert((sym::proc_macro, None));
     }
@@ -2198,7 +2198,7 @@ fn parse_remap_path_prefix(
 }
 
 // JUSTIFICATION: before wrapper fn is available
-#[cfg_attr(not(bootstrap), allow(rustc::bad_opt_access))]
+#[allow(rustc::bad_opt_access)]
 pub fn build_session_options(matches: &getopts::Matches) -> Options {
     let color = parse_color(matches);
 

compiler/rustc_session/src/lib.rs

@@ -1,5 +1,4 @@
 #![feature(if_let_guard)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(min_specialization)]
 #![feature(never_type)]