Rollup merge of #89558 - lcnr:query-stable-lint, r=estebank

Add rustc lint, warning when iterating over hashmaps

r? rust-lang/wg-incr-comp

Author: matthiaskrgr

compiler/rustc_ast_lowering/src/lib.rs

@@ -35,6 +35,7 @@
 #![feature(iter_zip)]
 #![feature(never_type)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 use rustc_ast::token::{self, Token};
 use rustc_ast::tokenstream::{CanSynthesizeMissingTokens, TokenStream, TokenTree};

compiler/rustc_ast_passes/src/lib.rs

@@ -7,6 +7,7 @@
 #![feature(iter_is_partitioned)]
 #![feature(box_patterns)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 pub mod ast_validation;
 pub mod feature_gate;

compiler/rustc_borrowck/src/lib.rs

@@ -13,6 +13,7 @@
 #![feature(trusted_step)]
 #![feature(try_blocks)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_middle;

compiler/rustc_builtin_macros/src/lib.rs

@@ -11,6 +11,7 @@
 #![feature(proc_macro_internals)]
 #![feature(proc_macro_quote)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 extern crate proc_macro;
 

compiler/rustc_codegen_llvm/src/lib.rs

@@ -13,6 +13,7 @@
 #![feature(iter_zip)]
 #![feature(nll)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 use back::write::{create_informational_target_machine, create_target_machine};
 

compiler/rustc_codegen_ssa/src/lib.rs

@@ -8,6 +8,7 @@
 #![feature(nll)]
 #![feature(associated_type_bounds)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 //! This crate contains codegen code that is used by all codegen backends (LLVM and others).
 //! The backend-agnostic functions of this crate use functions defined in various traits that

compiler/rustc_const_eval/src/lib.rs

@@ -24,6 +24,7 @@ Rust MIR: a lowered representation of Rust.
 #![feature(trusted_step)]
 #![feature(try_blocks)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate tracing;

compiler/rustc_data_structures/src/lib.rs

@@ -28,6 +28,7 @@
 #![feature(thread_id_value)]
 #![allow(rustc::default_hash_types)]
 #![deny(unaligned_references)]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate tracing;

compiler/rustc_driver/src/lib.rs

@@ -8,6 +8,7 @@
 #![feature(nll)]
 #![feature(once_cell)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate tracing;
@@ -846,7 +847,7 @@ Available lint options:
     let builtin = sort_lints(sess, builtin);
 
     let (plugin_groups, builtin_groups): (Vec<_>, _) =
-        lint_store.get_lint_groups().iter().cloned().partition(|&(.., p)| p);
+        lint_store.get_lint_groups().partition(|&(.., p)| p);
     let plugin_groups = sort_lint_groups(plugin_groups);
     let builtin_groups = sort_lint_groups(builtin_groups);
 

compiler/rustc_errors/src/lib.rs

@@ -10,6 +10,7 @@
 #![feature(iter_zip)]
 #![feature(let_else)]
 #![feature(nll)]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_macros;