Rollup merge of #102273 - woppopo:relax_const_bound, r=fee1-dead

[rust.git] / compiler / rustc_query_impl / src / lib.rs

diff --git a/compiler/rustc_query_impl/src/lib.rs b/compiler/rustc_query_impl/src/lib.rs
index 26d397f70e0ce83eb725bd09b03b88f40236ef54..8e018d3e4a4bcdd1ae9bce4b9746220679718983 100644 (file)
--- a/compiler/rustc_query_impl/src/lib.rs
+++ b/compiler/rustc_query_impl/src/lib.rs
@@ -1,6 +1,8 @@
 //! Support for serializing the dep-graph and reloading it.
 
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
+// this shouldn't be necessary, but the check for `&mut _` is too naive and denies returning a function pointer that takes a mut ref
+#![feature(const_mut_refs)]
 #![feature(min_specialization)]
 #![feature(never_type)]
 #![feature(once_cell)]
@@ -17,7 +19,7 @@
 
 use rustc_data_structures::sync::AtomicU64;
 use rustc_middle::arena::Arena;
-use rustc_middle::dep_graph::{self, DepKindStruct, SerializedDepNodeIndex};
+use rustc_middle::dep_graph::{self, DepKindStruct};
 use rustc_middle::ty::query::{query_keys, query_storage, query_stored, query_values};
 use rustc_middle::ty::query::{ExternProviders, Providers, QueryEngine};
 use rustc_middle::ty::{self, TyCtxt};