allow potential_query_instability everywhere

compiler/rustc_ast_lowering/src/lib.rs

@@ -34,6 +34,7 @@
 #![feature(box_patterns)]
 #![feature(iter_zip)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 use rustc_ast::node_id::NodeMap;
 use rustc_ast::token::{self, Token};

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

@@ -12,6 +12,7 @@
 #![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

@@ -7,6 +7,7 @@
 #![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

@@ -23,6 +23,7 @@ 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

@@ -9,6 +9,7 @@
 #![feature(format_args_capture)]
 #![feature(iter_zip)]
 #![feature(nll)]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_macros;

compiler/rustc_expand/src/lib.rs

@@ -9,6 +9,7 @@
 #![feature(proc_macro_span)]
 #![feature(try_blocks)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_macros;

compiler/rustc_incremental/src/lib.rs

@@ -4,6 +4,7 @@
 #![feature(in_band_lifetimes)]
 #![feature(nll)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_middle;

compiler/rustc_infer/src/lib.rs

@@ -23,6 +23,7 @@
 #![feature(min_specialization)]
 #![feature(label_break_value)]
 #![recursion_limit = "512"] // For rustdoc
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_macros;

compiler/rustc_interface/src/lib.rs

@@ -5,6 +5,7 @@
 #![feature(nll)]
 #![feature(once_cell)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 mod callbacks;
 pub mod interface;

compiler/rustc_lint/src/context.rs

@@ -144,7 +144,11 @@ impl LintStore {
         &self.lints
     }
 
-    pub fn get_lint_groups<'t>(&'t self) -> Vec<(&'static str, Vec<LintId>, bool)> {
+    pub fn get_lint_groups<'t>(
+        &'t self,
+    ) -> impl Iterator<Item = (&'static str, Vec<LintId>, bool)> + 't {
+        // This function is not used in a way which observes the order of lints.
+        #[cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
         self.lint_groups
             .iter()
             .filter(|(_, LintGroup { depr, .. })| {
@@ -154,7 +158,6 @@ impl LintStore {
             .map(|(k, LintGroup { lint_ids, from_plugin, .. })| {
                 (*k, lint_ids.clone(), *from_plugin)
             })
-            .collect()
     }
 
     pub fn register_early_pass(

compiler/rustc_lint/src/lib.rs

@@ -38,6 +38,7 @@
 #![feature(nll)]
 #![feature(control_flow_enum)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_middle;

compiler/rustc_metadata/src/lib.rs

@@ -9,6 +9,7 @@
 #![feature(try_blocks)]
 #![feature(never_type)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 extern crate proc_macro;
 

compiler/rustc_middle/src/lib.rs

@@ -55,6 +55,7 @@
 #![feature(try_reserve_kind)]
 #![feature(nonzero_ops)]
 #![recursion_limit = "512"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate bitflags;

compiler/rustc_mir_build/src/lib.rs

@@ -9,6 +9,7 @@
 #![feature(once_cell)]
 #![feature(min_specialization)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate tracing;

compiler/rustc_mir_transform/src/lib.rs

@@ -12,6 +12,7 @@
 #![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_monomorphize/src/lib.rs

@@ -4,6 +4,7 @@
 #![feature(control_flow_enum)]
 #![feature(in_band_lifetimes)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate tracing;

compiler/rustc_passes/src/lib.rs

@@ -14,6 +14,7 @@
 #![feature(nll)]
 #![feature(try_blocks)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_middle;

compiler/rustc_privacy/src/lib.rs

@@ -5,6 +5,7 @@
 #![feature(try_blocks)]
 #![feature(associated_type_defaults)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 use rustc_ast::MacroDef;
 use rustc_attr as attr;

compiler/rustc_query_impl/src/lib.rs

@@ -8,6 +8,7 @@
 #![feature(once_cell)]
 #![feature(rustc_attrs)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_macros;

compiler/rustc_query_system/src/lib.rs

@@ -5,6 +5,7 @@
 #![feature(iter_zip)]
 #![feature(min_specialization)]
 #![feature(thread_local_const_init)]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate tracing;

compiler/rustc_resolve/src/lib.rs

@@ -19,6 +19,7 @@
 #![feature(nll)]
 #![recursion_limit = "256"]
 #![allow(rustdoc::private_intra_doc_links)]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate tracing;

compiler/rustc_save_analysis/src/lib.rs

@@ -2,6 +2,7 @@
 #![feature(if_let_guard)]
 #![feature(nll)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 mod dump_visitor;
 mod dumper;

compiler/rustc_session/src/lib.rs

@@ -2,6 +2,7 @@
 #![feature(min_specialization)]
 #![feature(once_cell)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_macros;

compiler/rustc_span/src/lib.rs

@@ -21,6 +21,7 @@
 #![feature(nll)]
 #![feature(min_specialization)]
 #![feature(thread_local_const_init)]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_macros;

compiler/rustc_symbol_mangling/src/lib.rs

@@ -93,6 +93,7 @@
 #![feature(in_band_lifetimes)]
 #![feature(iter_zip)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_middle;

compiler/rustc_trait_selection/src/lib.rs

@@ -21,6 +21,7 @@
 #![feature(crate_visibility_modifier)]
 #![feature(control_flow_enum)]
 #![recursion_limit = "512"] // For rustdoc
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate rustc_macros;

compiler/rustc_typeck/src/lib.rs

@@ -70,6 +70,7 @@ This API is completely unstable and subject to change.
 #![feature(slice_partition_dedup)]
 #![feature(control_flow_enum)]
 #![recursion_limit = "256"]
+#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
 
 #[macro_use]
 extern crate tracing;