use par_for_each_in in par_body_owners and collect_crate_mono_items

compiler/rustc_data_structures/src/sync.rs

@@ -146,7 +146,7 @@ cfg_if! {
             t.into_iter()
         }
 
-        pub fn par_for_each_in<T: IntoIterator>(t: T, for_each: impl Fn(T::Item) + Sync + Send) {
+        pub fn par_for_each_in<T: IntoIterator>(t: T, mut for_each: impl FnMut(T::Item) + Sync + Send) {
             // We catch panics here ensuring that all the loop iterations execute.
             // This makes behavior consistent with the parallel compiler.
             let mut panic = None;

compiler/rustc_middle/src/hir/map/mod.rs

@@ -491,9 +491,7 @@ impl<'hir> Map<'hir> {
     }
 
     pub fn par_body_owners<F: Fn(LocalDefId) + Sync + Send>(self, f: F) {
-        use rustc_data_structures::sync::{par_iter, ParallelIterator};
-
-        par_iter(&self.tcx.hir_crate_items(()).body_owners[..]).for_each(|&def_id| f(def_id));
+        par_for_each_in(&self.tcx.hir_crate_items(()).body_owners[..], |&def_id| f(def_id));
     }
 
     pub fn ty_param_owner(self, def_id: LocalDefId) -> LocalDefId {

compiler/rustc_monomorphize/src/collector.rs

@@ -180,7 +180,7 @@
 //! regardless of whether it is actually needed or not.
 
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
-use rustc_data_structures::sync::{par_iter, MTLock, MTRef, ParallelIterator};
+use rustc_data_structures::sync::{par_for_each_in, MTLock, MTRef};
 use rustc_hir as hir;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::{DefId, DefIdMap, LocalDefId};
@@ -346,7 +346,7 @@ pub fn collect_crate_mono_items(
         let inlining_map: MTRef<'_, _> = &mut inlining_map;
 
         tcx.sess.time("monomorphization_collector_graph_walk", || {
-            par_iter(roots).for_each(|root| {
+            par_for_each_in(roots, |root| {
                 let mut recursion_depths = DefIdMap::default();
                 collect_items_rec(
                     tcx,

src/test/ui/privacy/privacy2.stderr

@@ -23,7 +23,13 @@ LL | pub fn foo() {}
 
 error: requires `sized` lang_item
 
-error: aborting due to 3 previous errors
+error: requires `sized` lang_item
+
+error: requires `sized` lang_item
+
+error: requires `sized` lang_item
+
+error: aborting due to 6 previous errors
 
 Some errors have detailed explanations: E0432, E0603.
 For more information about an error, try `rustc --explain E0432`.

src/test/ui/privacy/privacy3.stderr

@@ -6,6 +6,12 @@ LL |     use bar::gpriv;
 
 error: requires `sized` lang_item
 
-error: aborting due to 2 previous errors
+error: requires `sized` lang_item
+
+error: requires `sized` lang_item
+
+error: requires `sized` lang_item
+
+error: aborting due to 5 previous errors
 
 For more information about this error, try `rustc --explain E0432`.

src/test/ui/type_length_limit.stderr

@@ -7,5 +7,14 @@ LL | pub fn drop<T>(_x: T) {}
    = note: the full type name has been written to '$TEST_BUILD_DIR/type_length_limit/type_length_limit.long-type.txt'
    = help: consider adding a `#![type_length_limit="8"]` attribute to your crate
 
-error: aborting due to previous error
+error: reached the type-length limit while instantiating `<[closure@std::rt::lang_start<()...e<()>>::call_once - shim(vtable)`
+  --> $SRC_DIR/core/src/ops/function.rs:LL:COL
+   |
+LL |     extern "rust-call" fn call_once(self, args: Args) -> Self::Output;
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: the full type name has been written to '$TEST_BUILD_DIR/type_length_limit/type_length_limit.long-type.txt'
+   = help: consider adding a `#![type_length_limit="8"]` attribute to your crate
+
+error: aborting due to 2 previous errors