Merging upstream version 1.67.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

15 files changed, 145 insertions, 54 deletions

diff --git a/src/test/ui/generator/auto-trait-regions.stderr b/src/test/ui/generator/auto-trait-regions.stderr
index 23324af61..0b1f34aeb 100644
--- a/src/test/ui/generator/auto-trait-regions.stderr
+++ b/src/test/ui/generator/auto-trait-regions.stderr
@@ -4,7 +4,7 @@ error[E0716]: temporary value dropped while borrowed
 LL |         let a = A(&mut true, &mut true, No);
    |                        ^^^^                - temporary value is freed at the end of this statement
    |                        |
-   |                        creates a temporary which is freed while still in use
+   |                        creates a temporary value which is freed while still in use
 ...
 LL |         assert_foo(a);
    |                    - borrow later used here
@@ -17,7 +17,7 @@ error[E0716]: temporary value dropped while borrowed
 LL |         let a = A(&mut true, &mut true, No);
    |                                   ^^^^     - temporary value is freed at the end of this statement
    |                                   |
-   |                                   creates a temporary which is freed while still in use
+   |                                   creates a temporary value which is freed while still in use
 ...
 LL |         assert_foo(a);
    |                    - borrow later used here
diff --git a/src/test/ui/generator/clone-impl-async.rs b/src/test/ui/generator/clone-impl-async.rs
index 83c51526b..9e9b59d36 100644
--- a/src/test/ui/generator/clone-impl-async.rs
+++ b/src/test/ui/generator/clone-impl-async.rs
@@ -15,42 +15,42 @@ fn main() {
         drop(non_clone);
     };
     check_copy(&inner_non_clone);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Copy` is not satisfied
+    //~^ ERROR : Copy` is not satisfied
     check_clone(&inner_non_clone);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Clone` is not satisfied
+    //~^ ERROR : Clone` is not satisfied
 
     let non_clone = NonClone;
     let outer_non_clone = async move {
         drop(non_clone);
     };
     check_copy(&outer_non_clone);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Copy` is not satisfied
+    //~^ ERROR : Copy` is not satisfied
     check_clone(&outer_non_clone);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Clone` is not satisfied
+    //~^ ERROR : Clone` is not satisfied
 
     let maybe_copy_clone = async move {};
     check_copy(&maybe_copy_clone);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Copy` is not satisfied
+    //~^ ERROR : Copy` is not satisfied
     check_clone(&maybe_copy_clone);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Clone` is not satisfied
+    //~^ ERROR : Clone` is not satisfied
 
     let inner_non_clone_fn = the_inner_non_clone_fn();
     check_copy(&inner_non_clone_fn);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Copy` is not satisfied
+    //~^ ERROR : Copy` is not satisfied
     check_clone(&inner_non_clone_fn);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Clone` is not satisfied
+    //~^ ERROR : Clone` is not satisfied
 
     let outer_non_clone_fn = the_outer_non_clone_fn(NonClone);
     check_copy(&outer_non_clone_fn);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Copy` is not satisfied
+    //~^ ERROR : Copy` is not satisfied
     check_clone(&outer_non_clone_fn);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Clone` is not satisfied
+    //~^ ERROR : Clone` is not satisfied
 
     let maybe_copy_clone_fn = the_maybe_copy_clone_fn();
     check_copy(&maybe_copy_clone_fn);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Copy` is not satisfied
+    //~^ ERROR : Copy` is not satisfied
     check_clone(&maybe_copy_clone_fn);
-    //~^ ERROR the trait bound `impl Future<Output = ()>: Clone` is not satisfied
+    //~^ ERROR : Clone` is not satisfied
 }
 
 async fn the_inner_non_clone_fn() {
@@ -64,8 +64,7 @@ async fn the_outer_non_clone_fn(non_clone: NonClone) {
     drop(non_clone);
 }
 
-async fn the_maybe_copy_clone_fn() {
-}
+async fn the_maybe_copy_clone_fn() {}
 
 fn check_copy<T: Copy>(_x: &T) {}
 fn check_clone<T: Clone>(_x: &T) {}
diff --git a/src/test/ui/generator/clone-impl-async.stderr b/src/test/ui/generator/clone-impl-async.stderr
index cbb58d2af..985472887 100644
--- a/src/test/ui/generator/clone-impl-async.stderr
+++ b/src/test/ui/generator/clone-impl-async.stderr
@@ -1,83 +1,83 @@
-error[E0277]: the trait bound `impl Future<Output = ()>: Copy` is not satisfied
+error[E0277]: the trait bound `[async block@$DIR/clone-impl-async.rs:12:27: 16:6]: Copy` is not satisfied
   --> $DIR/clone-impl-async.rs:17:16
    |
 LL |     check_copy(&inner_non_clone);
-   |     ---------- ^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `impl Future<Output = ()>`
+   |     ---------- ^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `[async block@$DIR/clone-impl-async.rs:12:27: 16:6]`
    |     |
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_copy`
-  --> $DIR/clone-impl-async.rs:70:18
+  --> $DIR/clone-impl-async.rs:69:18
    |
 LL | fn check_copy<T: Copy>(_x: &T) {}
    |                  ^^^^ required by this bound in `check_copy`
 
-error[E0277]: the trait bound `impl Future<Output = ()>: Clone` is not satisfied
+error[E0277]: the trait bound `[async block@$DIR/clone-impl-async.rs:12:27: 16:6]: Clone` is not satisfied
   --> $DIR/clone-impl-async.rs:19:17
    |
 LL |     check_clone(&inner_non_clone);
-   |     ----------- ^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `impl Future<Output = ()>`
+   |     ----------- ^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `[async block@$DIR/clone-impl-async.rs:12:27: 16:6]`
    |     |
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_clone`
-  --> $DIR/clone-impl-async.rs:71:19
+  --> $DIR/clone-impl-async.rs:70:19
    |
 LL | fn check_clone<T: Clone>(_x: &T) {}
    |                   ^^^^^ required by this bound in `check_clone`
 
-error[E0277]: the trait bound `impl Future<Output = ()>: Copy` is not satisfied
+error[E0277]: the trait bound `[async block@$DIR/clone-impl-async.rs:23:27: 25:6]: Copy` is not satisfied
   --> $DIR/clone-impl-async.rs:26:16
    |
 LL |     check_copy(&outer_non_clone);
-   |     ---------- ^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `impl Future<Output = ()>`
+   |     ---------- ^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `[async block@$DIR/clone-impl-async.rs:23:27: 25:6]`
    |     |
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_copy`
-  --> $DIR/clone-impl-async.rs:70:18
+  --> $DIR/clone-impl-async.rs:69:18
    |
 LL | fn check_copy<T: Copy>(_x: &T) {}
    |                  ^^^^ required by this bound in `check_copy`
 
-error[E0277]: the trait bound `impl Future<Output = ()>: Clone` is not satisfied
+error[E0277]: the trait bound `[async block@$DIR/clone-impl-async.rs:23:27: 25:6]: Clone` is not satisfied
   --> $DIR/clone-impl-async.rs:28:17
    |
 LL |     check_clone(&outer_non_clone);
-   |     ----------- ^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `impl Future<Output = ()>`
+   |     ----------- ^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `[async block@$DIR/clone-impl-async.rs:23:27: 25:6]`
    |     |
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_clone`
-  --> $DIR/clone-impl-async.rs:71:19
+  --> $DIR/clone-impl-async.rs:70:19
    |
 LL | fn check_clone<T: Clone>(_x: &T) {}
    |                   ^^^^^ required by this bound in `check_clone`
 
-error[E0277]: the trait bound `impl Future<Output = ()>: Copy` is not satisfied
+error[E0277]: the trait bound `[async block@$DIR/clone-impl-async.rs:31:28: 31:41]: Copy` is not satisfied
   --> $DIR/clone-impl-async.rs:32:16
    |
 LL |     check_copy(&maybe_copy_clone);
-   |     ---------- ^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `impl Future<Output = ()>`
+   |     ---------- ^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `[async block@$DIR/clone-impl-async.rs:31:28: 31:41]`
    |     |
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_copy`
-  --> $DIR/clone-impl-async.rs:70:18
+  --> $DIR/clone-impl-async.rs:69:18
    |
 LL | fn check_copy<T: Copy>(_x: &T) {}
    |                  ^^^^ required by this bound in `check_copy`
 
-error[E0277]: the trait bound `impl Future<Output = ()>: Clone` is not satisfied
+error[E0277]: the trait bound `[async block@$DIR/clone-impl-async.rs:31:28: 31:41]: Clone` is not satisfied
   --> $DIR/clone-impl-async.rs:34:17
    |
 LL |     check_clone(&maybe_copy_clone);
-   |     ----------- ^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `impl Future<Output = ()>`
+   |     ----------- ^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `[async block@$DIR/clone-impl-async.rs:31:28: 31:41]`
    |     |
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_clone`
-  --> $DIR/clone-impl-async.rs:71:19
+  --> $DIR/clone-impl-async.rs:70:19
    |
 LL | fn check_clone<T: Clone>(_x: &T) {}
    |                   ^^^^^ required by this bound in `check_clone`
@@ -91,7 +91,7 @@ LL |     check_copy(&inner_non_clone_fn);
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_copy`
-  --> $DIR/clone-impl-async.rs:70:18
+  --> $DIR/clone-impl-async.rs:69:18
    |
 LL | fn check_copy<T: Copy>(_x: &T) {}
    |                  ^^^^ required by this bound in `check_copy`
@@ -105,7 +105,7 @@ LL |     check_clone(&inner_non_clone_fn);
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_clone`
-  --> $DIR/clone-impl-async.rs:71:19
+  --> $DIR/clone-impl-async.rs:70:19
    |
 LL | fn check_clone<T: Clone>(_x: &T) {}
    |                   ^^^^^ required by this bound in `check_clone`
@@ -119,7 +119,7 @@ LL |     check_copy(&outer_non_clone_fn);
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_copy`
-  --> $DIR/clone-impl-async.rs:70:18
+  --> $DIR/clone-impl-async.rs:69:18
    |
 LL | fn check_copy<T: Copy>(_x: &T) {}
    |                  ^^^^ required by this bound in `check_copy`
@@ -133,7 +133,7 @@ LL |     check_clone(&outer_non_clone_fn);
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_clone`
-  --> $DIR/clone-impl-async.rs:71:19
+  --> $DIR/clone-impl-async.rs:70:19
    |
 LL | fn check_clone<T: Clone>(_x: &T) {}
    |                   ^^^^^ required by this bound in `check_clone`
@@ -147,7 +147,7 @@ LL |     check_copy(&maybe_copy_clone_fn);
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_copy`
-  --> $DIR/clone-impl-async.rs:70:18
+  --> $DIR/clone-impl-async.rs:69:18
    |
 LL | fn check_copy<T: Copy>(_x: &T) {}
    |                  ^^^^ required by this bound in `check_copy`
@@ -161,7 +161,7 @@ LL |     check_clone(&maybe_copy_clone_fn);
    |     required by a bound introduced by this call
    |
 note: required by a bound in `check_clone`
-  --> $DIR/clone-impl-async.rs:71:19
+  --> $DIR/clone-impl-async.rs:70:19
    |
 LL | fn check_clone<T: Clone>(_x: &T) {}
    |                   ^^^^^ required by this bound in `check_clone`
diff --git a/src/test/ui/generator/issue-52398.stderr b/src/test/ui/generator/issue-52398.stderr
index 30a6732f7..539343275 100644
--- a/src/test/ui/generator/issue-52398.stderr
+++ b/src/test/ui/generator/issue-52398.stderr
@@ -4,7 +4,7 @@ warning: unused generator that must be used
 LL | /     move || {
 LL | |         A.test(yield);
 LL | |     };
-   | |______^
+   | |_____^
    |
    = note: generators are lazy and do nothing unless resumed
    = note: `#[warn(unused_must_use)]` on by default
@@ -16,7 +16,7 @@ LL | /     static move || {
 LL | |         yield *y.borrow();
 LL | |         return "Done";
 LL | |     };
-   | |______^
+   | |_____^
    |
    = note: generators are lazy and do nothing unless resumed
 
diff --git a/src/test/ui/generator/issue-57084.stderr b/src/test/ui/generator/issue-57084.stderr
index 29aca9440..8f1fc5e80 100644
--- a/src/test/ui/generator/issue-57084.stderr
+++ b/src/test/ui/generator/issue-57084.stderr
@@ -7,7 +7,7 @@ LL | |         loop {
 LL | |             yield
 LL | |         }
 LL | |     };
-   | |______^
+   | |_____^
    |
    = note: generators are lazy and do nothing unless resumed
    = note: `#[warn(unused_must_use)]` on by default
diff --git a/src/test/ui/generator/match-bindings.stderr b/src/test/ui/generator/match-bindings.stderr
index b911b6661..3dd2d5954 100644
--- a/src/test/ui/generator/match-bindings.stderr
+++ b/src/test/ui/generator/match-bindings.stderr
@@ -8,7 +8,7 @@ LL | |                 match Enum::A(String::new()) {
 ...  |
 LL | |         }
 LL | |     };
-   | |______^
+   | |_____^
    |
    = note: generators are lazy and do nothing unless resumed
    = note: `#[warn(unused_must_use)]` on by default
diff --git a/src/test/ui/generator/print/generator-print-verbose-1.stderr b/src/test/ui/generator/print/generator-print-verbose-1.stderr
index 2e0207804..ed0628bbb 100644
--- a/src/test/ui/generator/print/generator-print-verbose-1.stderr
+++ b/src/test/ui/generator/print/generator-print-verbose-1.stderr
@@ -9,7 +9,7 @@ note: generator is not `Send` as this value is used across a yield
   --> $DIR/generator-print-verbose-1.rs:35:9
    |
 LL |         let _non_send_gen = make_non_send_generator();
-   |             ------------- has type `Opaque(DefId(0:44 ~ generator_print_verbose_1[749a]::make_non_send_generator::{opaque#0}), [])` which is not `Send`
+   |             ------------- has type `Opaque(DefId(0:34 ~ generator_print_verbose_1[749a]::make_non_send_generator::{opaque#0}), [])` which is not `Send`
 LL |         yield;
    |         ^^^^^ yield occurs here, with `_non_send_gen` maybe used later
 LL |     };
@@ -35,17 +35,17 @@ note: required because it's used within this generator
    |
 LL |     || {
    |     ^^
-note: required because it appears within the type `Opaque(DefId(0:45 ~ generator_print_verbose_1[749a]::make_gen2::{opaque#0}), [std::sync::Arc<std::cell::RefCell<i32>>])`
+note: required because it appears within the type `Opaque(DefId(0:35 ~ generator_print_verbose_1[749a]::make_gen2::{opaque#0}), [std::sync::Arc<std::cell::RefCell<i32>>])`
   --> $DIR/generator-print-verbose-1.rs:41:30
    |
 LL | pub fn make_gen2<T>(t: T) -> impl Generator<Return = T> {
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
-note: required because it appears within the type `Opaque(DefId(0:46 ~ generator_print_verbose_1[749a]::make_non_send_generator2::{opaque#0}), [])`
+note: required because it appears within the type `Opaque(DefId(0:36 ~ generator_print_verbose_1[749a]::make_non_send_generator2::{opaque#0}), [])`
   --> $DIR/generator-print-verbose-1.rs:47:34
    |
 LL | fn make_non_send_generator2() -> impl Generator<Return = Arc<RefCell<i32>>> {
    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   = note: required because it captures the following types: `Opaque(DefId(0:46 ~ generator_print_verbose_1[749a]::make_non_send_generator2::{opaque#0}), [])`, `()`
+   = note: required because it captures the following types: `Opaque(DefId(0:36 ~ generator_print_verbose_1[749a]::make_non_send_generator2::{opaque#0}), [])`, `()`
 note: required because it's used within this generator
   --> $DIR/generator-print-verbose-1.rs:52:20
    |
diff --git a/src/test/ui/generator/reborrow-mut-upvar.stderr b/src/test/ui/generator/reborrow-mut-upvar.stderr
index e83dbf833..2e1fec35e 100644
--- a/src/test/ui/generator/reborrow-mut-upvar.stderr
+++ b/src/test/ui/generator/reborrow-mut-upvar.stderr
@@ -8,7 +8,7 @@ LL | |             yield;
 ...  |
 LL | |         *bar = 2;
 LL | |     };
-   | |______^
+   | |_____^
    |
    = note: generators are lazy and do nothing unless resumed
    = note: `#[warn(unused_must_use)]` on by default
diff --git a/src/test/ui/generator/too-live-local-in-immovable-gen.stderr b/src/test/ui/generator/too-live-local-in-immovable-gen.stderr
index 5cb43067f..e262f213f 100644
--- a/src/test/ui/generator/too-live-local-in-immovable-gen.stderr
+++ b/src/test/ui/generator/too-live-local-in-immovable-gen.stderr
@@ -8,7 +8,7 @@ LL | |             // and it should also find out that `a` is not live.
 ...  |
 LL | |             let _ = &a;
 LL | |         };
-   | |__________^
+   | |_________^
    |
    = note: generators are lazy and do nothing unless resumed
    = note: `#[warn(unused_must_use)]` on by default
diff --git a/src/test/ui/generator/unresolved-ct-var.rs b/src/test/ui/generator/unresolved-ct-var.rs
new file mode 100644
index 000000000..0a1570fc2
--- /dev/null
+++ b/src/test/ui/generator/unresolved-ct-var.rs
@@ -0,0 +1,14 @@
+// incremental
+// edition:2021
+
+fn main() {
+    let _ = async {
+        let s = std::array::from_fn(|_| ()).await;
+        //~^ ERROR `[(); _]` is not a future
+        //~| ERROR type inside `async` block must be known in this context
+        //~| ERROR type inside `async` block must be known in this context
+        //~| ERROR type inside `async` block must be known in this context
+        //~| ERROR type inside `async` block must be known in this context
+        //~| ERROR type inside `async` block must be known in this context
+    };
+}
diff --git a/src/test/ui/generator/unresolved-ct-var.stderr b/src/test/ui/generator/unresolved-ct-var.stderr
new file mode 100644
index 000000000..fdf00dfad
--- /dev/null
+++ b/src/test/ui/generator/unresolved-ct-var.stderr
@@ -0,0 +1,78 @@
+error[E0277]: `[(); _]` is not a future
+  --> $DIR/unresolved-ct-var.rs:6:44
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                 ---------------------------^^^^^^
+   |                 |                          |
+   |                 |                          `[(); _]` is not a future
+   |                 |                          help: remove the `.await`
+   |                 this call returns `[(); _]`
+   |
+   = help: the trait `Future` is not implemented for `[(); _]`
+   = note: [(); _] must be a future or must implement `IntoFuture` to be awaited
+   = note: required for `[(); _]` to implement `IntoFuture`
+
+error[E0698]: type inside `async` block must be known in this context
+  --> $DIR/unresolved-ct-var.rs:6:17
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                 ^^^^^^^^^^^^^^^^^^^ cannot infer the value of const parameter `N` declared on the function `from_fn`
+   |
+note: the type is part of the `async` block because of this `await`
+  --> $DIR/unresolved-ct-var.rs:6:44
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                                            ^^^^^^
+
+error[E0698]: type inside `async` block must be known in this context
+  --> $DIR/unresolved-ct-var.rs:6:17
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                 ^^^^^^^^^^^^^^^^^^^ cannot infer the value of const parameter `N` declared on the function `from_fn`
+   |
+note: the type is part of the `async` block because of this `await`
+  --> $DIR/unresolved-ct-var.rs:6:44
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                                            ^^^^^^
+
+error[E0698]: type inside `async` block must be known in this context
+  --> $DIR/unresolved-ct-var.rs:6:17
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                 ^^^^^^^^^^^^^^^^^^^ cannot infer the value of const parameter `N` declared on the function `from_fn`
+   |
+note: the type is part of the `async` block because of this `await`
+  --> $DIR/unresolved-ct-var.rs:6:44
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                                            ^^^^^^
+
+error[E0698]: type inside `async` block must be known in this context
+  --> $DIR/unresolved-ct-var.rs:6:17
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                 ^^^^^^^^^^^^^^^^^^^ cannot infer the value of const parameter `N` declared on the function `from_fn`
+   |
+note: the type is part of the `async` block because of this `await`
+  --> $DIR/unresolved-ct-var.rs:6:44
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                                            ^^^^^^
+
+error[E0698]: type inside `async` block must be known in this context
+  --> $DIR/unresolved-ct-var.rs:6:17
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                 ^^^^^^^^^^^^^^^^^^^ cannot infer the value of const parameter `N` declared on the function `from_fn`
+   |
+note: the type is part of the `async` block because of this `await`
+  --> $DIR/unresolved-ct-var.rs:6:44
+   |
+LL |         let s = std::array::from_fn(|_| ()).await;
+   |                                            ^^^^^^
+
+error: aborting due to 6 previous errors
+
+Some errors have detailed explanations: E0277, E0698.
+For more information about an error, try `rustc --explain E0277`.
diff --git a/src/test/ui/generator/yield-in-args-rev.stderr b/src/test/ui/generator/yield-in-args-rev.stderr
index c9e1ab722..a87248f66 100644
--- a/src/test/ui/generator/yield-in-args-rev.stderr
+++ b/src/test/ui/generator/yield-in-args-rev.stderr
@@ -5,7 +5,7 @@ LL | /     || {
 LL | |         let b = true;
 LL | |         foo(yield, &b);
 LL | |     };
-   | |______^
+   | |_____^
    |
    = note: generators are lazy and do nothing unless resumed
    = note: `#[warn(unused_must_use)]` on by default
diff --git a/src/test/ui/generator/yield-in-box.stderr b/src/test/ui/generator/yield-in-box.stderr
index 8587e1dc6..9d03ee008 100644
--- a/src/test/ui/generator/yield-in-box.stderr
+++ b/src/test/ui/generator/yield-in-box.stderr
@@ -8,7 +8,7 @@ LL | |             let _t = box (&x, yield 0, &y);
 ...  |
 LL | |         }
 LL | |     };
-   | |______^
+   | |_____^
    |
    = note: generators are lazy and do nothing unless resumed
    = note: `#[warn(unused_must_use)]` on by default
diff --git a/src/test/ui/generator/yield-in-initializer.stderr b/src/test/ui/generator/yield-in-initializer.stderr
index 07de24662..ed14a2e32 100644
--- a/src/test/ui/generator/yield-in-initializer.stderr
+++ b/src/test/ui/generator/yield-in-initializer.stderr
@@ -8,7 +8,7 @@ LL | |             // See https://github.com/rust-lang/rust/issues/52792
 ...  |
 LL | |         }
 LL | |     };
-   | |______^
+   | |_____^
    |
    = note: generators are lazy and do nothing unless resumed
    = note: `#[warn(unused_must_use)]` on by default
diff --git a/src/test/ui/generator/yield-subtype.stderr b/src/test/ui/generator/yield-subtype.stderr
index fe10477bf..97862e91c 100644
--- a/src/test/ui/generator/yield-subtype.stderr
+++ b/src/test/ui/generator/yield-subtype.stderr
@@ -5,7 +5,7 @@ LL | /     || {
 LL | |         yield a;
 LL | |         yield b;
 LL | |     };
-   | |______^
+   | |_____^
    |
    = note: generators are lazy and do nothing unless resumed
    = note: `#[warn(unused_must_use)]` on by default