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Fix ICE when compiling nightly std/rustc on beta compiler #89785

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Merged
merged 1 commit into from
Oct 12, 2021
Merged

Fix ICE when compiling nightly std/rustc on beta compiler #89785

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4 changes: 3 additions & 1 deletion compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -704,7 +704,9 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
.filter_map(|lang_item| self.tcx.lang_items().require(*lang_item).ok())
.collect();

never_suggest_borrow.push(self.tcx.get_diagnostic_item(sym::Send).unwrap());
if let Some(def_id) = self.tcx.get_diagnostic_item(sym::Send) {
never_suggest_borrow.push(def_id);
}

let param_env = obligation.param_env;
let trait_ref = poly_trait_ref.skip_binder();
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3 changes: 2 additions & 1 deletion library/core/src/marker.rs
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Expand Up @@ -30,7 +30,8 @@ use crate::hash::Hasher;
/// [arc]: ../../std/sync/struct.Arc.html
/// [ub]: ../../reference/behavior-considered-undefined.html
#[stable(feature = "rust1", since = "1.0.0")]
#[cfg_attr(not(test), rustc_diagnostic_item = "Send")]
#[cfg_attr(all(not(test), bootstrap), rustc_diagnostic_item = "send_trait")]
#[cfg_attr(all(not(test), not(bootstrap)), rustc_diagnostic_item = "Send")]
#[rustc_on_unimplemented(
message = "`{Self}` cannot be sent between threads safely",
label = "`{Self}` cannot be sent between threads safely"
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