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-rw-r--r--compiler/rustc_query_impl/src/lib.rs7
1 files changed, 1 insertions, 6 deletions
diff --git a/compiler/rustc_query_impl/src/lib.rs b/compiler/rustc_query_impl/src/lib.rs
index 00d886000fa..1d831affd1d 100644
--- a/compiler/rustc_query_impl/src/lib.rs
+++ b/compiler/rustc_query_impl/src/lib.rs
@@ -2,13 +2,9 @@
 
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(in_band_lifetimes)]
-#![feature(exhaustive_patterns)]
 #![feature(nll)]
 #![feature(min_specialization)]
-#![feature(crate_visibility_modifier)]
-#![feature(once_cell)]
 #![feature(rustc_attrs)]
-#![feature(never_type)]
 #![recursion_limit = "256"]
 
 #[macro_use]
@@ -19,14 +15,13 @@ extern crate tracing;
 use rustc_data_structures::fingerprint::Fingerprint;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_errors::{DiagnosticBuilder, Handler};
-use rustc_hir::def_id::LOCAL_CRATE;
 use rustc_middle::dep_graph;
 use rustc_middle::ich::StableHashingContext;
 use rustc_middle::ty::query::{query_keys, query_storage, query_stored, query_values};
 use rustc_middle::ty::query::{Providers, QueryEngine};
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_serialize::opaque;
-use rustc_span::{Span, DUMMY_SP};
+use rustc_span::Span;
 
 #[macro_use]
 mod plumbing;