Remove never_type feature

Stablized in rust-lang/rust#65355

clippy_lints/src/lib.rs

@@ -2,7 +2,6 @@
 
 #![feature(box_syntax)]
 #![feature(box_patterns)]
-#![feature(never_type)]
 #![feature(rustc_private)]
 #![feature(slice_patterns)]
 #![feature(stmt_expr_attributes)]

tests/ui/diverging_sub_expression.rs

@@ -1,4 +1,3 @@
-#![feature(never_type)]
 #![warn(clippy::diverging_sub_expression)]
 #![allow(clippy::match_same_arms, clippy::logic_bug)]
 

tests/ui/diverging_sub_expression.stderr

@@ -1,5 +1,5 @@
 error: sub-expression diverges
-  --> $DIR/diverging_sub_expression.rs:21:10
+  --> $DIR/diverging_sub_expression.rs:20:10
    |
 LL |     b || diverge();
    |          ^^^^^^^^^
@@ -7,31 +7,31 @@ LL |     b || diverge();
    = note: `-D clippy::diverging-sub-expression` implied by `-D warnings`
 
 error: sub-expression diverges
-  --> $DIR/diverging_sub_expression.rs:22:10
+  --> $DIR/diverging_sub_expression.rs:21:10
    |
 LL |     b || A.foo();
    |          ^^^^^^^
 
 error: sub-expression diverges
-  --> $DIR/diverging_sub_expression.rs:31:26
+  --> $DIR/diverging_sub_expression.rs:30:26
    |
 LL |             6 => true || return,
    |                          ^^^^^^
 
 error: sub-expression diverges
-  --> $DIR/diverging_sub_expression.rs:32:26
+  --> $DIR/diverging_sub_expression.rs:31:26
    |
 LL |             7 => true || continue,
    |                          ^^^^^^^^
 
 error: sub-expression diverges
-  --> $DIR/diverging_sub_expression.rs:35:26
+  --> $DIR/diverging_sub_expression.rs:34:26
    |
 LL |             3 => true || diverge(),
    |                          ^^^^^^^^^
 
 error: sub-expression diverges
-  --> $DIR/diverging_sub_expression.rs:40:26
+  --> $DIR/diverging_sub_expression.rs:39:26
    |
 LL |             _ => true || break,
    |                          ^^^^^

tests/ui/infallible_destructuring_match.fixed

@@ -1,5 +1,5 @@
 // run-rustfix
-#![feature(exhaustive_patterns, never_type)]
+#![feature(exhaustive_patterns)]
 #![allow(dead_code, unreachable_code, unused_variables)]
 #![allow(clippy::let_and_return)]
 

tests/ui/infallible_destructuring_match.rs

@@ -1,5 +1,5 @@
 // run-rustfix
-#![feature(exhaustive_patterns, never_type)]
+#![feature(exhaustive_patterns)]
 #![allow(dead_code, unreachable_code, unused_variables)]
 #![allow(clippy::let_and_return)]
 

tests/ui/must_use_candidates.fixed

@@ -1,5 +1,4 @@
 // run-rustfix
-#![feature(never_type)]
 #![allow(unused_mut)]
 #![warn(clippy::must_use_candidate)]
 use std::rc::Rc;

tests/ui/must_use_candidates.rs

@@ -1,5 +1,4 @@
 // run-rustfix
-#![feature(never_type)]
 #![allow(unused_mut)]
 #![warn(clippy::must_use_candidate)]
 use std::rc::Rc;

tests/ui/must_use_candidates.stderr

@@ -1,5 +1,5 @@
 error: this function could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:12:1
+  --> $DIR/must_use_candidates.rs:11:1
    |
 LL | pub fn pure(i: u8) -> u8 {
    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn pure(i: u8) -> u8`
@@ -7,25 +7,25 @@ LL | pub fn pure(i: u8) -> u8 {
    = note: `-D clippy::must-use-candidate` implied by `-D warnings`
 
 error: this method could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:17:5
+  --> $DIR/must_use_candidates.rs:16:5
    |
 LL |     pub fn inherent_pure(&self) -> u8 {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn inherent_pure(&self) -> u8`
 
 error: this function could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:48:1
+  --> $DIR/must_use_candidates.rs:47:1
    |
 LL | pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool`
 
 error: this function could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:60:1
+  --> $DIR/must_use_candidates.rs:59:1
    |
 LL | pub fn rcd(_x: Rc<u32>) -> bool {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn rcd(_x: Rc<u32>) -> bool`
 
 error: this function could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:68:1
+  --> $DIR/must_use_candidates.rs:67:1
    |
 LL | pub fn arcd(_x: Arc<u32>) -> bool {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn arcd(_x: Arc<u32>) -> bool`

tests/ui/result_map_unit_fn_fixable.fixed

@@ -1,6 +1,5 @@
 // run-rustfix
 
-#![feature(never_type)]
 #![warn(clippy::result_map_unit_fn)]
 #![allow(unused)]
 

tests/ui/result_map_unit_fn_fixable.rs

@@ -1,6 +1,5 @@
 // run-rustfix
 
-#![feature(never_type)]
 #![warn(clippy::result_map_unit_fn)]
 #![allow(unused)]
 

tests/ui/result_map_unit_fn_fixable.stderr

@@ -1,5 +1,5 @@
 error: called `map(f)` on an Result value where `f` is a unit function
-  --> $DIR/result_map_unit_fn_fixable.rs:36:5
+  --> $DIR/result_map_unit_fn_fixable.rs:35:5
    |
 LL |     x.field.map(do_nothing);
    |     ^^^^^^^^^^^^^^^^^^^^^^^-
@@ -9,7 +9,7 @@ LL |     x.field.map(do_nothing);
    = note: `-D clippy::result-map-unit-fn` implied by `-D warnings`
 
 error: called `map(f)` on an Result value where `f` is a unit function
-  --> $DIR/result_map_unit_fn_fixable.rs:38:5
+  --> $DIR/result_map_unit_fn_fixable.rs:37:5
    |
 LL |     x.field.map(do_nothing);
    |     ^^^^^^^^^^^^^^^^^^^^^^^-
@@ -17,7 +17,7 @@ LL |     x.field.map(do_nothing);
    |     help: try this: `if let Ok(x_field) = x.field { do_nothing(x_field) }`
 
 error: called `map(f)` on an Result value where `f` is a unit function
-  --> $DIR/result_map_unit_fn_fixable.rs:40:5
+  --> $DIR/result_map_unit_fn_fixable.rs:39:5
    |
 LL |     x.field.map(diverge);
    |     ^^^^^^^^^^^^^^^^^^^^-
@@ -25,7 +25,7 @@ LL |     x.field.map(diverge);
    |     help: try this: `if let Ok(x_field) = x.field { diverge(x_field) }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:46:5
+  --> $DIR/result_map_unit_fn_fixable.rs:45:5
    |
 LL |     x.field.map(|value| x.do_result_nothing(value + captured));
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -33,7 +33,7 @@ LL |     x.field.map(|value| x.do_result_nothing(value + captured));
    |     help: try this: `if let Ok(value) = x.field { x.do_result_nothing(value + captured) }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:48:5
+  --> $DIR/result_map_unit_fn_fixable.rs:47:5
    |
 LL |     x.field.map(|value| { x.do_result_plus_one(value + captured); });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -41,7 +41,7 @@ LL |     x.field.map(|value| { x.do_result_plus_one(value + captured); });
    |     help: try this: `if let Ok(value) = x.field { x.do_result_plus_one(value + captured); }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:51:5
+  --> $DIR/result_map_unit_fn_fixable.rs:50:5
    |
 LL |     x.field.map(|value| do_nothing(value + captured));
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -49,7 +49,7 @@ LL |     x.field.map(|value| do_nothing(value + captured));
    |     help: try this: `if let Ok(value) = x.field { do_nothing(value + captured) }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:53:5
+  --> $DIR/result_map_unit_fn_fixable.rs:52:5
    |
 LL |     x.field.map(|value| { do_nothing(value + captured) });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -57,7 +57,7 @@ LL |     x.field.map(|value| { do_nothing(value + captured) });
    |     help: try this: `if let Ok(value) = x.field { do_nothing(value + captured) }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:55:5
+  --> $DIR/result_map_unit_fn_fixable.rs:54:5
    |
 LL |     x.field.map(|value| { do_nothing(value + captured); });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -65,7 +65,7 @@ LL |     x.field.map(|value| { do_nothing(value + captured); });
    |     help: try this: `if let Ok(value) = x.field { do_nothing(value + captured); }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:57:5
+  --> $DIR/result_map_unit_fn_fixable.rs:56:5
    |
 LL |     x.field.map(|value| { { do_nothing(value + captured); } });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -73,7 +73,7 @@ LL |     x.field.map(|value| { { do_nothing(value + captured); } });
    |     help: try this: `if let Ok(value) = x.field { do_nothing(value + captured); }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:60:5
+  --> $DIR/result_map_unit_fn_fixable.rs:59:5
    |
 LL |     x.field.map(|value| diverge(value + captured));
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -81,7 +81,7 @@ LL |     x.field.map(|value| diverge(value + captured));
    |     help: try this: `if let Ok(value) = x.field { diverge(value + captured) }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:62:5
+  --> $DIR/result_map_unit_fn_fixable.rs:61:5
    |
 LL |     x.field.map(|value| { diverge(value + captured) });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -89,7 +89,7 @@ LL |     x.field.map(|value| { diverge(value + captured) });
    |     help: try this: `if let Ok(value) = x.field { diverge(value + captured) }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:64:5
+  --> $DIR/result_map_unit_fn_fixable.rs:63:5
    |
 LL |     x.field.map(|value| { diverge(value + captured); });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -97,7 +97,7 @@ LL |     x.field.map(|value| { diverge(value + captured); });
    |     help: try this: `if let Ok(value) = x.field { diverge(value + captured); }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:66:5
+  --> $DIR/result_map_unit_fn_fixable.rs:65:5
    |
 LL |     x.field.map(|value| { { diverge(value + captured); } });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -105,7 +105,7 @@ LL |     x.field.map(|value| { { diverge(value + captured); } });
    |     help: try this: `if let Ok(value) = x.field { diverge(value + captured); }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:71:5
+  --> $DIR/result_map_unit_fn_fixable.rs:70:5
    |
 LL |     x.field.map(|value| { let y = plus_one(value + captured); });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -113,7 +113,7 @@ LL |     x.field.map(|value| { let y = plus_one(value + captured); });
    |     help: try this: `if let Ok(value) = x.field { let y = plus_one(value + captured); }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:73:5
+  --> $DIR/result_map_unit_fn_fixable.rs:72:5
    |
 LL |     x.field.map(|value| { plus_one(value + captured); });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -121,7 +121,7 @@ LL |     x.field.map(|value| { plus_one(value + captured); });
    |     help: try this: `if let Ok(value) = x.field { plus_one(value + captured); }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:75:5
+  --> $DIR/result_map_unit_fn_fixable.rs:74:5
    |
 LL |     x.field.map(|value| { { plus_one(value + captured); } });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
@@ -129,7 +129,7 @@ LL |     x.field.map(|value| { { plus_one(value + captured); } });
    |     help: try this: `if let Ok(value) = x.field { plus_one(value + captured); }`
 
 error: called `map(f)` on an Result value where `f` is a unit closure
-  --> $DIR/result_map_unit_fn_fixable.rs:78:5
+  --> $DIR/result_map_unit_fn_fixable.rs:77:5
    |
 LL |     x.field.map(|ref value| { do_nothing(value + captured) });
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-

tests/ui/result_map_unit_fn_unfixable.rs

@@ -1,4 +1,3 @@
-#![feature(never_type)]
 #![warn(clippy::result_map_unit_fn)]
 #![allow(unused)]
 

tests/ui/result_map_unit_fn_unfixable.stderr

@@ -1,23 +1,23 @@
 error[E0425]: cannot find value `x` in this scope
-  --> $DIR/result_map_unit_fn_unfixable.rs:17:5
+  --> $DIR/result_map_unit_fn_unfixable.rs:16:5
    |
 LL |     x.field.map(|value| { do_nothing(value); do_nothing(value) });
    |     ^ not found in this scope
 
 error[E0425]: cannot find value `x` in this scope
-  --> $DIR/result_map_unit_fn_unfixable.rs:19:5
+  --> $DIR/result_map_unit_fn_unfixable.rs:18:5
    |
 LL |     x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) });
    |     ^ not found in this scope
 
 error[E0425]: cannot find value `x` in this scope
-  --> $DIR/result_map_unit_fn_unfixable.rs:23:5
+  --> $DIR/result_map_unit_fn_unfixable.rs:22:5
    |
 LL |     x.field.map(|value| {
    |     ^ not found in this scope
 
 error[E0425]: cannot find value `x` in this scope
-  --> $DIR/result_map_unit_fn_unfixable.rs:27:5
+  --> $DIR/result_map_unit_fn_unfixable.rs:26:5
    |
 LL |     x.field.map(|value| { do_nothing(value); do_nothing(value); });
    |     ^ not found in this scope