RFC 2008: Stabilization

This commit stabilizes RFC 2008 (#44109) by removing the feature gate.

Signed-off-by: David Wood <david@davidtw.co>

26 files changed, 21 insertions, 65 deletions

diff --git a/src/test/ui/feature-gates/feature-gate-non_exhaustive.rs b/src/test/ui/feature-gates/feature-gate-non_exhaustive.rs
deleted file mode 100644
index 950f170f4fd..00000000000
--- a/src/test/ui/feature-gates/feature-gate-non_exhaustive.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-//#![feature(non_exhaustive)]
-
-#[non_exhaustive] //~ERROR the `#[non_exhaustive]` attribute is an experimental feature
-pub enum NonExhaustiveEnum {
-    Unit,
-    Tuple(u32),
-    Struct { field: u32 }
-}
-
-fn main() { }
diff --git a/src/test/ui/feature-gates/feature-gate-non_exhaustive.stderr b/src/test/ui/feature-gates/feature-gate-non_exhaustive.stderr
deleted file mode 100644
index 482332b8d70..00000000000
--- a/src/test/ui/feature-gates/feature-gate-non_exhaustive.stderr
+++ /dev/null
@@ -1,12 +0,0 @@
-error[E0658]: the `#[non_exhaustive]` attribute is an experimental feature
-  --> $DIR/feature-gate-non_exhaustive.rs:3:1
-   |
-LL | #[non_exhaustive]
-   | ^^^^^^^^^^^^^^^^^
-   |
-   = note: for more information, see https://github.com/rust-lang/rust/issues/44109
-   = help: add `#![feature(non_exhaustive)]` to the crate attributes to enable
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0658`.
diff --git a/src/test/ui/rfc-2008-non-exhaustive/auxiliary/enums.rs b/src/test/ui/rfc-2008-non-exhaustive/auxiliary/enums.rs
index e3820599c72..bbc25d40256 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/auxiliary/enums.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/auxiliary/enums.rs
@@ -1,5 +1,4 @@
 #![crate_type = "rlib"]
-#![feature(non_exhaustive)]
 
 #[non_exhaustive]
 pub enum NonExhaustiveEnum {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/auxiliary/structs.rs b/src/test/ui/rfc-2008-non-exhaustive/auxiliary/structs.rs
index ddfb9ad0037..6bfe7bf923d 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/auxiliary/structs.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/auxiliary/structs.rs
@@ -1,5 +1,3 @@
-#![feature(non_exhaustive)]
-
 #[non_exhaustive]
 pub struct NormalStruct {
     pub first_field: u16,
diff --git a/src/test/ui/rfc-2008-non-exhaustive/auxiliary/variants.rs b/src/test/ui/rfc-2008-non-exhaustive/auxiliary/variants.rs
index f590d0a3268..02672d5454e 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/auxiliary/variants.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/auxiliary/variants.rs
@@ -1,5 +1,4 @@
 #![crate_type = "rlib"]
-#![feature(non_exhaustive)]
 
 pub enum NonExhaustiveVariants {
     #[non_exhaustive] Unit,
diff --git a/src/test/ui/rfc-2008-non-exhaustive/enum_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/enum_same_crate.rs
index a3626bf60b2..54e42917f52 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/enum_same_crate.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/enum_same_crate.rs
@@ -1,7 +1,5 @@
 // run-pass
 
-#![feature(non_exhaustive)]
-
 #[non_exhaustive]
 pub enum NonExhaustiveEnum {
     Unit,
diff --git a/src/test/ui/rfc-2008-non-exhaustive/improper_ctypes/auxiliary/types.rs b/src/test/ui/rfc-2008-non-exhaustive/improper_ctypes/auxiliary/types.rs
index 1a187d04251..d6251fcb768 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/improper_ctypes/auxiliary/types.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/improper_ctypes/auxiliary/types.rs
@@ -1,5 +1,3 @@
-#![feature(non_exhaustive)]
-
 #[non_exhaustive]
 #[repr(C)]
 pub enum NonExhaustiveEnum {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/improper_ctypes/same_crate_proper.rs b/src/test/ui/rfc-2008-non-exhaustive/improper_ctypes/same_crate_proper.rs
index 3f38e3cd8e5..c09aa256e0e 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/improper_ctypes/same_crate_proper.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/improper_ctypes/same_crate_proper.rs
@@ -1,5 +1,4 @@
 // check-pass
-#![feature(non_exhaustive)]
 #![deny(improper_ctypes)]
 
 // This test checks that non-exhaustive types with `#[repr(C)]` are considered proper within
diff --git a/src/test/ui/rfc-2008-non-exhaustive/invalid-attribute.rs b/src/test/ui/rfc-2008-non-exhaustive/invalid-attribute.rs
index b7938e1afa3..3c4a09fafd2 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/invalid-attribute.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/invalid-attribute.rs
@@ -1,5 +1,3 @@
-#![feature(non_exhaustive)]
-
 #[non_exhaustive(anything)]
 //~^ ERROR malformed `non_exhaustive` attribute
 struct Foo;
diff --git a/src/test/ui/rfc-2008-non-exhaustive/invalid-attribute.stderr b/src/test/ui/rfc-2008-non-exhaustive/invalid-attribute.stderr
index 21dc340d212..76d9e2d8205 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/invalid-attribute.stderr
+++ b/src/test/ui/rfc-2008-non-exhaustive/invalid-attribute.stderr
@@ -1,11 +1,11 @@
 error: malformed `non_exhaustive` attribute input
-  --> $DIR/invalid-attribute.rs:3:1
+  --> $DIR/invalid-attribute.rs:1:1
    |
 LL | #[non_exhaustive(anything)]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[non_exhaustive]`
 
 error[E0701]: attribute can only be applied to a struct or enum
-  --> $DIR/invalid-attribute.rs:7:1
+  --> $DIR/invalid-attribute.rs:5:1
    |
 LL | #[non_exhaustive]
    | ^^^^^^^^^^^^^^^^^
@@ -14,7 +14,7 @@ LL | trait Bar { }
    | ------------- not a struct or enum
 
 error[E0701]: attribute can only be applied to a struct or enum
-  --> $DIR/invalid-attribute.rs:11:1
+  --> $DIR/invalid-attribute.rs:9:1
    |
 LL |   #[non_exhaustive]
    |   ^^^^^^^^^^^^^^^^^
diff --git a/src/test/ui/rfc-2008-non-exhaustive/struct.stderr b/src/test/ui/rfc-2008-non-exhaustive/struct.stderr
index d3686a1b869..04cfe51cab0 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/struct.stderr
+++ b/src/test/ui/rfc-2008-non-exhaustive/struct.stderr
@@ -16,7 +16,7 @@ error[E0603]: tuple struct constructor `TupleStruct` is private
 LL |     let ts_explicit = structs::TupleStruct(640, 480);
    |                                ^^^^^^^^^^^
    | 
-  ::: $DIR/auxiliary/structs.rs:13:24
+  ::: $DIR/auxiliary/structs.rs:11:24
    |
 LL | pub struct TupleStruct(pub u16, pub u16);
    |                        ---------------- a constructor is private if any of the fields is private
diff --git a/src/test/ui/rfc-2008-non-exhaustive/structs_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/structs_same_crate.rs
index 2b1d7d9ac50..5f76b0cb2f4 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/structs_same_crate.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/structs_same_crate.rs
@@ -1,7 +1,6 @@
 // run-pass
 
 #![allow(unused_variables)]
-#![feature(non_exhaustive)]
 
 #[non_exhaustive]
 pub struct NormalStruct {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/auxiliary/uninhabited.rs b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/auxiliary/uninhabited.rs
index 8cb9a8cf1f6..a2735d4cbfb 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/auxiliary/uninhabited.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/auxiliary/uninhabited.rs
@@ -1,6 +1,5 @@
 #![crate_type = "rlib"]
 #![feature(never_type)]
-#![feature(non_exhaustive)]
 
 #[non_exhaustive]
 pub enum UninhabitedEnum {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/coercions_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/coercions_same_crate.rs
index 803a542f8aa..6b911dd989c 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/coercions_same_crate.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/coercions_same_crate.rs
@@ -1,5 +1,4 @@
 #![feature(never_type)]
-#![feature(non_exhaustive)]
 
 #[non_exhaustive]
 pub enum UninhabitedEnum {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/coercions_same_crate.stderr b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/coercions_same_crate.stderr
index 8f6b709bb1f..a07473dade2 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/coercions_same_crate.stderr
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/coercions_same_crate.stderr
@@ -1,5 +1,5 @@
 error[E0308]: mismatched types
-  --> $DIR/coercions_same_crate.rs:31:5
+  --> $DIR/coercions_same_crate.rs:30:5
    |
 LL | fn cannot_coerce_empty_enum_to_anything(x: UninhabitedEnum) -> A {
    |                                                                - expected `A` because of return type
@@ -10,7 +10,7 @@ LL |     x
               found type `UninhabitedEnum`
 
 error[E0308]: mismatched types
-  --> $DIR/coercions_same_crate.rs:35:5
+  --> $DIR/coercions_same_crate.rs:34:5
    |
 LL | fn cannot_coerce_empty_tuple_struct_to_anything(x: UninhabitedTupleStruct) -> A {
    |                                                                               - expected `A` because of return type
@@ -21,7 +21,7 @@ LL |     x
               found type `UninhabitedTupleStruct`
 
 error[E0308]: mismatched types
-  --> $DIR/coercions_same_crate.rs:39:5
+  --> $DIR/coercions_same_crate.rs:38:5
    |
 LL | fn cannot_coerce_empty_struct_to_anything(x: UninhabitedStruct) -> A {
    |                                                                    - expected `A` because of return type
@@ -32,7 +32,7 @@ LL |     x
               found type `UninhabitedStruct`
 
 error[E0308]: mismatched types
-  --> $DIR/coercions_same_crate.rs:43:5
+  --> $DIR/coercions_same_crate.rs:42:5
    |
 LL | fn cannot_coerce_enum_with_empty_variants_to_anything(x: UninhabitedVariants) -> A {
    |                                                                                  - expected `A` because of return type
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_same_crate.rs
index 3c8d495e12c..8f090fe886a 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_same_crate.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_same_crate.rs
@@ -1,5 +1,4 @@
 #![feature(never_type)]
-#![feature(non_exhaustive)]
 
 #[non_exhaustive]
 pub enum UninhabitedEnum {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_same_crate.stderr b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_same_crate.stderr
index 27b120792d6..c03018a5236 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_same_crate.stderr
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_same_crate.stderr
@@ -1,5 +1,5 @@
 error[E0004]: non-exhaustive patterns: pattern `IndirectUninhabitedEnum` of type `IndirectUninhabitedEnum` is not handled
-  --> $DIR/indirect_match_same_crate.rs:35:11
+  --> $DIR/indirect_match_same_crate.rs:34:11
    |
 LL | pub struct IndirectUninhabitedEnum(UninhabitedEnum);
    | ----------------------------------------------------
@@ -13,7 +13,7 @@ LL |     match x {}
    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
 
 error[E0004]: non-exhaustive patterns: pattern `IndirectUninhabitedStruct` of type `IndirectUninhabitedStruct` is not handled
-  --> $DIR/indirect_match_same_crate.rs:39:11
+  --> $DIR/indirect_match_same_crate.rs:38:11
    |
 LL | pub struct IndirectUninhabitedStruct(UninhabitedStruct);
    | --------------------------------------------------------
@@ -27,7 +27,7 @@ LL |     match x {}
    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
 
 error[E0004]: non-exhaustive patterns: pattern `IndirectUninhabitedTupleStruct` of type `IndirectUninhabitedTupleStruct` is not handled
-  --> $DIR/indirect_match_same_crate.rs:43:11
+  --> $DIR/indirect_match_same_crate.rs:42:11
    |
 LL | pub struct IndirectUninhabitedTupleStruct(UninhabitedTupleStruct);
    | ------------------------------------------------------------------
@@ -41,7 +41,7 @@ LL |     match x {}
    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
 
 error[E0004]: non-exhaustive patterns: pattern `IndirectUninhabitedVariants` of type `IndirectUninhabitedVariants` is not handled
-  --> $DIR/indirect_match_same_crate.rs:49:11
+  --> $DIR/indirect_match_same_crate.rs:48:11
    |
 LL | pub struct IndirectUninhabitedVariants(UninhabitedVariants);
    | ------------------------------------------------------------
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_with_exhaustive_patterns_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_with_exhaustive_patterns_same_crate.rs
index d1e7c3b4d51..60289aa7803 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_with_exhaustive_patterns_same_crate.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/indirect_match_with_exhaustive_patterns_same_crate.rs
@@ -3,7 +3,6 @@
 #![deny(unreachable_patterns)]
 #![feature(exhaustive_patterns)]
 #![feature(never_type)]
-#![feature(non_exhaustive)]
 
 #[non_exhaustive]
 pub enum UninhabitedEnum {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.rs b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.rs
index 0096e296300..230ac75298e 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.rs
@@ -1,7 +1,6 @@
 // aux-build:uninhabited.rs
 #![deny(unreachable_patterns)]
 #![feature(never_type)]
-#![feature(non_exhaustive)]
 
 extern crate uninhabited;
 
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.stderr b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.stderr
index d46b1fd4c42..f2b9983af86 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.stderr
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.stderr
@@ -1,5 +1,5 @@
 error: unreachable pattern
-  --> $DIR/issue-65157-repeated-match-arm.rs:16:9
+  --> $DIR/issue-65157-repeated-match-arm.rs:15:9
    |
 LL |         PartiallyInhabitedVariants::Struct { .. } => {},
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_same_crate.rs
index 6405dd3bd65..ebbdfba15f3 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_same_crate.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_same_crate.rs
@@ -1,5 +1,4 @@
 #![feature(never_type)]
-#![feature(non_exhaustive)]
 
 #[non_exhaustive]
 pub enum UninhabitedEnum {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_same_crate.stderr b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_same_crate.stderr
index 410285a39a9..c39df05a8f7 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_same_crate.stderr
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_same_crate.stderr
@@ -1,5 +1,5 @@
 error[E0004]: non-exhaustive patterns: pattern `UninhabitedStruct` of type `UninhabitedStruct` is not handled
-  --> $DIR/match_same_crate.rs:31:11
+  --> $DIR/match_same_crate.rs:30:11
    |
 LL |   pub struct UninhabitedStruct {
    |   -          ----------------- variant not covered
@@ -15,7 +15,7 @@ LL |       match x {}
    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
 
 error[E0004]: non-exhaustive patterns: pattern `UninhabitedTupleStruct` of type `UninhabitedTupleStruct` is not handled
-  --> $DIR/match_same_crate.rs:35:11
+  --> $DIR/match_same_crate.rs:34:11
    |
 LL | pub struct UninhabitedTupleStruct(!);
    | -------------------------------------
@@ -29,7 +29,7 @@ LL |     match x {}
    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
 
 error[E0004]: non-exhaustive patterns: multiple patterns of type `UninhabitedVariants` are not handled
-  --> $DIR/match_same_crate.rs:39:11
+  --> $DIR/match_same_crate.rs:38:11
    |
 LL | / pub enum UninhabitedVariants {
 LL | |     #[non_exhaustive] Tuple(!),
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns_same_crate.rs
index 8973d21bff6..de5530485f3 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns_same_crate.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns_same_crate.rs
@@ -3,7 +3,6 @@
 #![deny(unreachable_patterns)]
 #![feature(exhaustive_patterns)]
 #![feature(never_type)]
-#![feature(non_exhaustive)]
 
 #[non_exhaustive]
 pub enum UninhabitedEnum {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs
index 302a35cab5f..ffc496a975e 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs
@@ -1,7 +1,6 @@
 #![deny(unreachable_patterns)]
 #![feature(exhaustive_patterns)]
 #![feature(never_type)]
-#![feature(non_exhaustive)]
 
 #[non_exhaustive]
 pub enum UninhabitedEnum {
diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.stderr b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.stderr
index 72f37d9a60b..e3de94be128 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.stderr
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.stderr
@@ -1,5 +1,5 @@
 error: unreachable pattern
-  --> $DIR/patterns_same_crate.rs:53:9
+  --> $DIR/patterns_same_crate.rs:52:9
    |
 LL |         Some(_x) => (),
    |         ^^^^^^^^
@@ -11,25 +11,25 @@ LL | #![deny(unreachable_patterns)]
    |         ^^^^^^^^^^^^^^^^^^^^
 
 error: unreachable pattern
-  --> $DIR/patterns_same_crate.rs:58:9
+  --> $DIR/patterns_same_crate.rs:57:9
    |
 LL |         Some(_x) => (),
    |         ^^^^^^^^
 
 error: unreachable pattern
-  --> $DIR/patterns_same_crate.rs:62:15
+  --> $DIR/patterns_same_crate.rs:61:15
    |
 LL |     while let PartiallyInhabitedVariants::Struct { x } = partially_inhabited_variant() {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: unreachable pattern
-  --> $DIR/patterns_same_crate.rs:66:15
+  --> $DIR/patterns_same_crate.rs:65:15
    |
 LL |     while let Some(_x) = uninhabited_struct() {
    |               ^^^^^^^^
 
 error: unreachable pattern
-  --> $DIR/patterns_same_crate.rs:69:15
+  --> $DIR/patterns_same_crate.rs:68:15
    |
 LL |     while let Some(_x) = uninhabited_tuple_struct() {
    |               ^^^^^^^^
diff --git a/src/test/ui/rfc-2008-non-exhaustive/variants_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/variants_same_crate.rs
index fe7df44590b..5f2816ec621 100644
--- a/src/test/ui/rfc-2008-non-exhaustive/variants_same_crate.rs
+++ b/src/test/ui/rfc-2008-non-exhaustive/variants_same_crate.rs
@@ -1,7 +1,5 @@
 // run-pass
 
-#![feature(non_exhaustive)]
-
 pub enum NonExhaustiveVariants {
     #[non_exhaustive] Unit,
     #[non_exhaustive] Tuple(u32),