From ebe63cde53a8bc1a6e7fcde8b6c3dc9f51b1831b Mon Sep 17 00:00:00 2001
From: Nilstrieb <48135649+Nilstrieb@users.noreply.github.com>
Date: Mon, 16 Oct 2023 22:11:57 +0200
Subject: [PATCH] Stop telling people to submit bugs for internal feature ICEs

This keeps track of usage of internal features, and changes the message
to instead tell them that using internal features is not supported.

See MCP 620.
---
 src/driver.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/driver.rs b/src/driver.rs
index d47767faed9..3876da150c5 100644
--- a/src/driver.rs
+++ b/src/driver.rs
@@ -178,7 +178,7 @@ pub fn main() {
 
     rustc_driver::init_rustc_env_logger(&handler);
 
-    rustc_driver::install_ice_hook(BUG_REPORT_URL, |handler| {
+    let using_internal_features = rustc_driver::install_ice_hook(BUG_REPORT_URL, |handler| {
         // FIXME: this macro calls unwrap internally but is called in a panicking context!  It's not
         // as simple as moving the call from the hook to main, because `install_ice_hook` doesn't
         // accept a generic closure.
@@ -265,9 +265,11 @@ pub fn main() {
         let clippy_enabled = !cap_lints_allow && (!no_deps || in_primary_package);
         if clippy_enabled {
             args.extend(clippy_args);
-            rustc_driver::RunCompiler::new(&args, &mut ClippyCallbacks { clippy_args_var }).run()
+            rustc_driver::RunCompiler::new(&args, &mut ClippyCallbacks { clippy_args_var })
+                .set_using_internal_features(using_internal_features).run()
         } else {
-            rustc_driver::RunCompiler::new(&args, &mut RustcCallbacks { clippy_args_var }).run()
+            rustc_driver::RunCompiler::new(&args, &mut RustcCallbacks { clippy_args_var })
+                .set_using_internal_features(using_internal_features).run()
         }
     }))
 }