Stabilize async closures

10 files changed, 45 insertions, 51 deletions

diff --git a/tests/ui/async_yields_async.fixed b/tests/ui/async_yields_async.fixed
index 208651bab1f..48402164a82 100644
--- a/tests/ui/async_yields_async.fixed
+++ b/tests/ui/async_yields_async.fixed
@@ -1,4 +1,3 @@
-#![feature(async_closure)]
 #![warn(clippy::async_yields_async)]
 #![allow(clippy::redundant_async_block)]
 
diff --git a/tests/ui/async_yields_async.rs b/tests/ui/async_yields_async.rs
index b124c994442..8ad016b6bb4 100644
--- a/tests/ui/async_yields_async.rs
+++ b/tests/ui/async_yields_async.rs
@@ -1,4 +1,3 @@
-#![feature(async_closure)]
 #![warn(clippy::async_yields_async)]
 #![allow(clippy::redundant_async_block)]
 
diff --git a/tests/ui/async_yields_async.stderr b/tests/ui/async_yields_async.stderr
index 861c3f2ce4a..c900a9d7421 100644
--- a/tests/ui/async_yields_async.stderr
+++ b/tests/ui/async_yields_async.stderr
@@ -1,5 +1,5 @@
 error: an async construct yields a type which is itself awaitable
-  --> tests/ui/async_yields_async.rs:38:9
+  --> tests/ui/async_yields_async.rs:37:9
    |
 LL |        let _h = async {
    |  _____________________-
@@ -20,7 +20,7 @@ LL +         }.await
    |
 
 error: an async construct yields a type which is itself awaitable
-  --> tests/ui/async_yields_async.rs:43:9
+  --> tests/ui/async_yields_async.rs:42:9
    |
 LL |       let _i = async {
    |  ____________________-
@@ -33,7 +33,7 @@ LL | |     };
    | |_____- outer async construct
 
 error: an async construct yields a type which is itself awaitable
-  --> tests/ui/async_yields_async.rs:49:9
+  --> tests/ui/async_yields_async.rs:48:9
    |
 LL |        let _j = async || {
    |  ________________________-
@@ -52,7 +52,7 @@ LL +         }.await
    |
 
 error: an async construct yields a type which is itself awaitable
-  --> tests/ui/async_yields_async.rs:54:9
+  --> tests/ui/async_yields_async.rs:53:9
    |
 LL |       let _k = async || {
    |  _______________________-
@@ -65,7 +65,7 @@ LL | |     };
    | |_____- outer async construct
 
 error: an async construct yields a type which is itself awaitable
-  --> tests/ui/async_yields_async.rs:56:23
+  --> tests/ui/async_yields_async.rs:55:23
    |
 LL |     let _l = async || CustomFutureType;
    |                       ^^^^^^^^^^^^^^^^
@@ -75,7 +75,7 @@ LL |     let _l = async || CustomFutureType;
    |                       help: consider awaiting this value: `CustomFutureType.await`
 
 error: an async construct yields a type which is itself awaitable
-  --> tests/ui/async_yields_async.rs:62:9
+  --> tests/ui/async_yields_async.rs:61:9
    |
 LL |       let _m = async || {
    |  _______________________-
diff --git a/tests/ui/author/blocks.rs b/tests/ui/author/blocks.rs
index 164f7d0d9d6..e9db611a2aa 100644
--- a/tests/ui/author/blocks.rs
+++ b/tests/ui/author/blocks.rs
@@ -2,7 +2,6 @@
 
 #![allow(redundant_semicolons, clippy::no_effect)]
 #![feature(stmt_expr_attributes)]
-#![feature(async_closure)]
 
 #[rustfmt::skip]
 fn main() {
diff --git a/tests/ui/infinite_loops.rs b/tests/ui/infinite_loops.rs
index 0613eddce26..d7be6f9ce7e 100644
--- a/tests/ui/infinite_loops.rs
+++ b/tests/ui/infinite_loops.rs
@@ -3,7 +3,6 @@
 
 #![allow(clippy::never_loop)]
 #![warn(clippy::infinite_loop)]
-#![feature(async_closure)]
 
 extern crate proc_macros;
 use proc_macros::{external, with_span};
diff --git a/tests/ui/infinite_loops.stderr b/tests/ui/infinite_loops.stderr
index 3a3ed7d0fe8..7635a7442f4 100644
--- a/tests/ui/infinite_loops.stderr
+++ b/tests/ui/infinite_loops.stderr
@@ -1,5 +1,5 @@
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:14:5
+  --> tests/ui/infinite_loops.rs:13:5
    |
 LL | /     loop {
 LL | |
@@ -15,7 +15,7 @@ LL | fn no_break() -> ! {
    |               ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:21:5
+  --> tests/ui/infinite_loops.rs:20:5
    |
 LL | /     loop {
 LL | |
@@ -32,7 +32,7 @@ LL | fn all_inf() -> ! {
    |              ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:23:9
+  --> tests/ui/infinite_loops.rs:22:9
    |
 LL | /         loop {
 LL | |
@@ -49,7 +49,7 @@ LL | fn all_inf() -> ! {
    |              ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:25:13
+  --> tests/ui/infinite_loops.rs:24:13
    |
 LL | /             loop {
 LL | |
@@ -63,7 +63,7 @@ LL | fn all_inf() -> ! {
    |              ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:39:5
+  --> tests/ui/infinite_loops.rs:38:5
    |
 LL | /     loop {
 LL | |
@@ -74,7 +74,7 @@ LL | |     }
    = help: if this is not intended, try adding a `break` or `return` condition in the loop
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:52:5
+  --> tests/ui/infinite_loops.rs:51:5
    |
 LL | /     loop {
 LL | |         fn inner_fn() -> ! {
@@ -90,7 +90,7 @@ LL | fn no_break_never_ret_noise() -> ! {
    |                               ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:95:5
+  --> tests/ui/infinite_loops.rs:94:5
    |
 LL | /     loop {
 LL | |
@@ -107,7 +107,7 @@ LL | fn break_inner_but_not_outer_1(cond: bool) -> ! {
    |                                            ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:106:5
+  --> tests/ui/infinite_loops.rs:105:5
    |
 LL | /     loop {
 LL | |
@@ -124,7 +124,7 @@ LL | fn break_inner_but_not_outer_2(cond: bool) -> ! {
    |                                            ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:120:9
+  --> tests/ui/infinite_loops.rs:119:9
    |
 LL | /         loop {
 LL | |
@@ -138,7 +138,7 @@ LL | fn break_outer_but_not_inner() -> ! {
    |                                ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:143:9
+  --> tests/ui/infinite_loops.rs:142:9
    |
 LL | /         loop {
 LL | |
@@ -155,7 +155,7 @@ LL | fn break_wrong_loop(cond: bool) -> ! {
    |                                 ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:183:5
+  --> tests/ui/infinite_loops.rs:182:5
    |
 LL | /     loop {
 LL | |
@@ -172,7 +172,7 @@ LL | fn match_like() -> ! {
    |                 ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:224:5
+  --> tests/ui/infinite_loops.rs:223:5
    |
 LL | /     loop {
 LL | |
@@ -186,7 +186,7 @@ LL | fn match_like() -> ! {
    |                 ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:229:5
+  --> tests/ui/infinite_loops.rs:228:5
    |
 LL | /     loop {
 LL | |
@@ -203,7 +203,7 @@ LL | fn match_like() -> ! {
    |                 ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:334:9
+  --> tests/ui/infinite_loops.rs:333:9
    |
 LL | /         loop {
 LL | |
@@ -217,7 +217,7 @@ LL |     fn problematic_trait_method() -> ! {
    |                                   ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:344:9
+  --> tests/ui/infinite_loops.rs:343:9
    |
 LL | /         loop {
 LL | |
@@ -231,7 +231,7 @@ LL |     fn could_be_problematic() -> ! {
    |                               ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:353:9
+  --> tests/ui/infinite_loops.rs:352:9
    |
 LL | /         loop {
 LL | |
@@ -245,7 +245,7 @@ LL |     let _loop_forever = || -> ! {
    |                            ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:367:8
+  --> tests/ui/infinite_loops.rs:366:8
    |
 LL |       Ok(loop {
    |  ________^
@@ -256,7 +256,7 @@ LL | |     })
    = help: if this is not intended, try adding a `break` or `return` condition in the loop
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:409:5
+  --> tests/ui/infinite_loops.rs:408:5
    |
 LL | /     'infinite: loop {
 LL | |
@@ -272,7 +272,7 @@ LL | fn continue_outer() -> ! {
    |                     ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:416:5
+  --> tests/ui/infinite_loops.rs:415:5
    |
 LL | /     loop {
 LL | |
@@ -289,7 +289,7 @@ LL | fn continue_outer() -> ! {
    |                     ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:418:9
+  --> tests/ui/infinite_loops.rs:417:9
    |
 LL | /         'inner: loop {
 LL | |             loop {
@@ -304,7 +304,7 @@ LL | fn continue_outer() -> ! {
    |                     ++++
 
 error: infinite loop detected
-  --> tests/ui/infinite_loops.rs:426:5
+  --> tests/ui/infinite_loops.rs:425:5
    |
 LL | /     loop {
 LL | |
diff --git a/tests/ui/redundant_closure_call_fixable.fixed b/tests/ui/redundant_closure_call_fixable.fixed
index 191f7719904..9138a8bacfe 100644
--- a/tests/ui/redundant_closure_call_fixable.fixed
+++ b/tests/ui/redundant_closure_call_fixable.fixed
@@ -1,4 +1,3 @@
-#![feature(async_closure)]
 #![warn(clippy::redundant_closure_call)]
 #![allow(clippy::redundant_async_block)]
 #![allow(clippy::type_complexity)]
diff --git a/tests/ui/redundant_closure_call_fixable.rs b/tests/ui/redundant_closure_call_fixable.rs
index 33a3b90f9cf..ede6fa27778 100644
--- a/tests/ui/redundant_closure_call_fixable.rs
+++ b/tests/ui/redundant_closure_call_fixable.rs
@@ -1,4 +1,3 @@
-#![feature(async_closure)]
 #![warn(clippy::redundant_closure_call)]
 #![allow(clippy::redundant_async_block)]
 #![allow(clippy::type_complexity)]
diff --git a/tests/ui/redundant_closure_call_fixable.stderr b/tests/ui/redundant_closure_call_fixable.stderr
index 000d81f811f..8e0d37df96b 100644
--- a/tests/ui/redundant_closure_call_fixable.stderr
+++ b/tests/ui/redundant_closure_call_fixable.stderr
@@ -1,5 +1,5 @@
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:16:13
+  --> tests/ui/redundant_closure_call_fixable.rs:15:13
    |
 LL |     let a = (|| 42)();
    |             ^^^^^^^^^ help: try doing something like: `42`
@@ -8,7 +8,7 @@ LL |     let a = (|| 42)();
    = help: to override `-D warnings` add `#[allow(clippy::redundant_closure_call)]`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:17:13
+  --> tests/ui/redundant_closure_call_fixable.rs:16:13
    |
 LL |       let b = (async || {
    |  _____________^
@@ -28,7 +28,7 @@ LL ~     };
    |
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:22:13
+  --> tests/ui/redundant_closure_call_fixable.rs:21:13
    |
 LL |       let c = (|| {
    |  _____________^
@@ -48,13 +48,13 @@ LL ~     };
    |
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:27:13
+  --> tests/ui/redundant_closure_call_fixable.rs:26:13
    |
 LL |     let d = (async || something().await)();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try doing something like: `async { something().await }`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:36:13
+  --> tests/ui/redundant_closure_call_fixable.rs:35:13
    |
 LL |             (|| m!())()
    |             ^^^^^^^^^^^ help: try doing something like: `m!()`
@@ -65,7 +65,7 @@ LL |     m2!();
    = note: this error originates in the macro `m2` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:31:13
+  --> tests/ui/redundant_closure_call_fixable.rs:30:13
    |
 LL |             (|| 0)()
    |             ^^^^^^^^ help: try doing something like: `0`
@@ -76,67 +76,67 @@ LL |     m2!();
    = note: this error originates in the macro `m` which comes from the expansion of the macro `m2` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:44:16
+  --> tests/ui/redundant_closure_call_fixable.rs:43:16
    |
 LL |     assert_eq!((|| || 43)()(), 42);
    |                ^^^^^^^^^^^^^^ help: try doing something like: `43`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:53:10
+  --> tests/ui/redundant_closure_call_fixable.rs:52:10
    |
 LL |     dbg!((|| 42)());
    |          ^^^^^^^^^ help: try doing something like: `42`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:56:13
+  --> tests/ui/redundant_closure_call_fixable.rs:55:13
    |
 LL |     let a = (|| || || 123)();
    |             ^^^^^^^^^^^^^^^^ help: try doing something like: `(|| || 123)`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:60:13
+  --> tests/ui/redundant_closure_call_fixable.rs:59:13
    |
 LL |     let a = (|| || || || async || 1)()()()()();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try doing something like: `async { 1 }`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:69:13
+  --> tests/ui/redundant_closure_call_fixable.rs:68:13
    |
 LL |     let a = (|| echo!(|| echo!(|| 1)))()()();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try doing something like: `1`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:71:13
+  --> tests/ui/redundant_closure_call_fixable.rs:70:13
    |
 LL |     let a = (|| echo!((|| 123)))()();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: try doing something like: `123`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:84:11
+  --> tests/ui/redundant_closure_call_fixable.rs:83:11
    |
 LL |     bar()((|| || 42)()(), 5);
    |           ^^^^^^^^^^^^^^ help: try doing something like: `42`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:85:9
+  --> tests/ui/redundant_closure_call_fixable.rs:84:9
    |
 LL |     foo((|| || 42)()(), 5);
    |         ^^^^^^^^^^^^^^ help: try doing something like: `42`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:89:5
+  --> tests/ui/redundant_closure_call_fixable.rs:88:5
    |
 LL |     (|| async {})().await;
    |     ^^^^^^^^^^^^^^^ help: try doing something like: `async {}`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:98:18
+  --> tests/ui/redundant_closure_call_fixable.rs:97:18
    |
 LL |         spawn_on((|| async move {})());
    |                  ^^^^^^^^^^^^^^^^^^^^ help: try doing something like: `async move {}`
 
 error: try not to call a closure in the expression where it is declared
-  --> tests/ui/redundant_closure_call_fixable.rs:103:28
+  --> tests/ui/redundant_closure_call_fixable.rs:102:28
    |
 LL |     std::convert::identity((|| 13_i32 + 36_i32)()).leading_zeros();
    |                            ^^^^^^^^^^^^^^^^^^^^^^ help: try doing something like: `13_i32 + 36_i32`
diff --git a/tests/ui/redundant_locals.rs b/tests/ui/redundant_locals.rs
index d21aa240b2d..3e7695106a7 100644
--- a/tests/ui/redundant_locals.rs
+++ b/tests/ui/redundant_locals.rs
@@ -1,7 +1,7 @@
 //@aux-build:proc_macros.rs
 #![allow(unused, clippy::no_effect, clippy::needless_pass_by_ref_mut)]
 #![warn(clippy::redundant_locals)]
-#![feature(async_closure, coroutines, stmt_expr_attributes)]
+#![feature(coroutines, stmt_expr_attributes)]
 
 extern crate proc_macros;
 use proc_macros::{external, with_span};