From a0190b5fdd54a3183739982d722472491313c69c Mon Sep 17 00:00:00 2001
From: Mark Rousskov <mark.simulacrum@gmail.com>
Date: Sat, 8 May 2021 20:43:23 -0400
Subject: [PATCH] Add link to issue

---
 compiler/rustc_query_system/src/query/plumbing.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compiler/rustc_query_system/src/query/plumbing.rs b/compiler/rustc_query_system/src/query/plumbing.rs
index 5a825e6775b8e..da372091608a0 100644
--- a/compiler/rustc_query_system/src/query/plumbing.rs
+++ b/compiler/rustc_query_system/src/query/plumbing.rs
@@ -599,6 +599,7 @@ fn incremental_verify_ich<CTX, K, V: Debug>(
         tcx.sess().struct_err(&format!("internal compiler error: encountered incremental compilation error with {:?}", dep_node))
             .help(&format!("This is a known issue with the compiler. Run {} to allow your project to compile", run_cmd))
             .note(&format!("Please follow the instructions below to create a bug report with the provided information"))
+            .note(&format!("See <https://github.com/rust-lang/rust/issues/84970> for more information."))
             .emit();
         panic!("Found unstable fingerprints for {:?}: {:?}", dep_node, result);
     }