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Rollup merge of #108449 - fee1-dead-contrib:do_not_lint_unresolved, r=compiler-errors

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Do not lint ineffective unstable trait impl for unresolved trait
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Matthias Krüger 2023-02-26 00:46:28 +01:00 • committed by GitHub
commit a223ff7cea
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3 changed files with 21 additions and 1 deletions
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5
compiler/rustc_passes/src/stability.rs
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@ -748,7 +748,10 @@ impl<'tcx> Visitor<'tcx> for Checker<'tcx> {
let mut c = CheckTraitImplStable { tcx: self.tcx, fully_stable: true };
c.visit_ty(self_ty);
c.visit_trait_ref(t);
if c.fully_stable {
// do not lint when the trait isn't resolved, since resolution error should
// be fixed first
if t.path.res != Res::Err && c.fully_stable {
self.tcx.struct_span_lint_hir(
INEFFECTIVE_UNSTABLE_TRAIT_IMPL,
item.hir_id(),