8 files changed, 6 insertions, 10 deletions
diff --git a/compiler/rustc_codegen_gcc/src/intrinsic/simd.rs b/compiler/rustc_codegen_gcc/src/intrinsic/simd.rs
index 7d7811c8782..a613e117904 100644
--- a/compiler/rustc_codegen_gcc/src/intrinsic/simd.rs
+++ b/compiler/rustc_codegen_gcc/src/intrinsic/simd.rs
@@ -13,6 +13,7 @@ use crate::builder::Builder;
 
 pub fn generic_simd_intrinsic<'a, 'gcc, 'tcx>(bx: &mut Builder<'a, 'gcc, 'tcx>, name: Symbol, callee_ty: Ty<'tcx>, args: &[OperandRef<'tcx, RValue<'gcc>>], ret_ty: Ty<'tcx>, llret_ty: Type<'gcc>, span: Span) -> Result<RValue<'gcc>, ()> {
     // macros for error handling:
+    #[allow(unused_macro_rules)]
     macro_rules! emit_error {
         ($msg: tt) => {
             emit_error!($msg, )
diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs
index 4407297c943..9927f5f399b 100644
--- a/compiler/rustc_codegen_llvm/src/intrinsic.rs
+++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs
@@ -816,7 +816,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
     span: Span,
 ) -> Result<&'ll Value, ()> {
     // macros for error handling:
-    #[cfg_attr(not(bootstrap), allow(unused_macro_rules))]
+    #[allow(unused_macro_rules)]
     macro_rules! emit_error {
         ($msg: tt) => {
             emit_error!($msg, )
@@ -1145,7 +1145,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
         span: Span,
         args: &[OperandRef<'tcx, &'ll Value>],
     ) -> Result<&'ll Value, ()> {
-        #[cfg_attr(not(bootstrap), allow(unused_macro_rules))]
+        #[allow(unused_macro_rules)]
         macro_rules! emit_error {
             ($msg: tt) => {
                 emit_error!($msg, )
diff --git a/compiler/rustc_feature/src/lib.rs b/compiler/rustc_feature/src/lib.rs
index 26e0538b0eb..efb83052768 100644
--- a/compiler/rustc_feature/src/lib.rs
+++ b/compiler/rustc_feature/src/lib.rs
@@ -11,7 +11,6 @@
 //! even if it is stabilized or removed, *do not remove it*. Instead, move the
 //! symbol to the `accepted` or `removed` modules respectively.
 
-#![cfg_attr(bootstrap, feature(derive_default_enum))]
 #![feature(once_cell)]
 
 mod accepted;
diff --git a/compiler/rustc_infer/src/lib.rs b/compiler/rustc_infer/src/lib.rs
index 4c691c25189..0f13a9b1388 100644
--- a/compiler/rustc_infer/src/lib.rs
+++ b/compiler/rustc_infer/src/lib.rs
@@ -16,7 +16,6 @@
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(box_patterns)]
 #![feature(control_flow_enum)]
-#![cfg_attr(bootstrap, feature(derive_default_enum))]
 #![feature(extend_one)]
 #![feature(label_break_value)]
 #![feature(let_chains)]
diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs
index 3a9fe31735f..17ca534d91b 100644
--- a/compiler/rustc_middle/src/lib.rs
+++ b/compiler/rustc_middle/src/lib.rs
@@ -29,7 +29,6 @@
 #![feature(backtrace)]
 #![feature(box_patterns)]
 #![feature(core_intrinsics)]
-#![cfg_attr(bootstrap, feature(derive_default_enum))]
 #![feature(discriminant_kind)]
 #![feature(exhaustive_patterns)]
 #![feature(get_mut_unchecked)]
diff --git a/compiler/rustc_middle/src/mir/visit.rs b/compiler/rustc_middle/src/mir/visit.rs
index d0d7f121a25..5ce92d127f3 100644
--- a/compiler/rustc_middle/src/mir/visit.rs
+++ b/compiler/rustc_middle/src/mir/visit.rs
@@ -258,7 +258,7 @@ macro_rules! make_mir_visitor {
                 // for best performance, we want to use an iterator rather
                 // than a for-loop, to avoid calling `body::Body::invalidate` for
                 // each basic block.
-                #[cfg_attr(not(bootstrap), allow(unused_macro_rules))]
+                #[allow(unused_macro_rules)]
                 macro_rules! basic_blocks {
                     (mut) => (body.basic_blocks_mut().iter_enumerated_mut());
                     () => (body.basic_blocks().iter_enumerated());
@@ -280,7 +280,7 @@ macro_rules! make_mir_visitor {
                     self.visit_local_decl(local, & $($mutability)? body.local_decls[local]);
                 }
 
-                #[cfg_attr(not(bootstrap), allow(unused_macro_rules))]
+                #[allow(unused_macro_rules)]
                 macro_rules! type_annotations {
                     (mut) => (body.user_type_annotations.iter_enumerated_mut());
                     () => (body.user_type_annotations.iter_enumerated());
@@ -933,7 +933,7 @@ macro_rules! make_mir_visitor {
                 body: &$($mutability)? Body<'tcx>,
                 location: Location
             ) {
-                #[cfg_attr(not(bootstrap), allow(unused_macro_rules))]
+                #[allow(unused_macro_rules)]
                 macro_rules! basic_blocks {
                     (mut) => (body.basic_blocks_mut());
                     () => (body.basic_blocks());
diff --git a/compiler/rustc_session/src/lib.rs b/compiler/rustc_session/src/lib.rs
index f84a154950f..59b4981dd01 100644
--- a/compiler/rustc_session/src/lib.rs
+++ b/compiler/rustc_session/src/lib.rs
@@ -1,6 +1,5 @@
 #![feature(if_let_guard)]
 #![feature(let_chains)]
-#![cfg_attr(bootstrap, feature(derive_default_enum))]
 #![feature(let_else)]
 #![feature(min_specialization)]
 #![feature(never_type)]
diff --git a/compiler/rustc_trait_selection/src/lib.rs b/compiler/rustc_trait_selection/src/lib.rs
index 539e94993ae..e4da6172916 100644
--- a/compiler/rustc_trait_selection/src/lib.rs
+++ b/compiler/rustc_trait_selection/src/lib.rs
@@ -14,7 +14,6 @@
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(box_patterns)]
 #![feature(control_flow_enum)]
-#![cfg_attr(bootstrap, feature(derive_default_enum))]
 #![feature(drain_filter)]
 #![feature(hash_drain_filter)]
 #![feature(label_break_value)]