From a02db8660c3e7a61d31eee7f9c4a42f3814bfa0f Mon Sep 17 00:00:00 2001
From: Waffle Lapkin <waffle.lapkin@gmail.com>
Date: Sat, 18 May 2024 00:08:52 +0200
Subject: [PATCH] Make `NEVER_TYPE_FALLBACK_FLOWING_INTO_UNSAFE` into an FCW
 and report it ext macros

---
 compiler/rustc_lint_defs/src/builtin.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs
index b195db9a5f517..3b8bec887ea0b 100644
--- a/compiler/rustc_lint_defs/src/builtin.rs
+++ b/compiler/rustc_lint_defs/src/builtin.rs
@@ -4320,7 +4320,12 @@ declare_lint! {
     /// [`()`]: https://doc.rust-lang.org/core/primitive.unit.html
     pub NEVER_TYPE_FALLBACK_FLOWING_INTO_UNSAFE,
     Warn,
-    "never type fallback affecting unsafe function calls"
+    "never type fallback affecting unsafe function calls",
+    @future_incompatible = FutureIncompatibleInfo {
+        reason: FutureIncompatibilityReason::FutureReleaseSemanticsChange,
+        reference: "issue #123748 <https://github.com/rust-lang/rust/issues/123748>",
+    };
+    report_in_external_macro
 }
 
 declare_lint! {