1 files changed, 2 insertions, 0 deletions
diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.stderr
index 60cd000f2d8..e72d259e8a5 100644
--- a/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.stderr
+++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.stderr
@@ -5,6 +5,7 @@ LL |     a.plus(b)
    |       ^^^^^^^
    |
    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
+   = help: add `#![feature(effects)]` to the crate attributes to enable
 
 error[E0015]: cannot call non-const operator in constants
   --> $DIR/call-const-trait-method-pass.rs:39:22
@@ -18,6 +19,7 @@ note: impl defined here, but it is not `const`
 LL | impl const std::ops::Add for Int {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
+   = help: add `#![feature(effects)]` to the crate attributes to enable
 
 error: aborting due to 2 previous errors