Fix CI

Author: Jules-Bertholet

tests/ui/impl-trait/unsized_coercion5.next.stderr

@@ -1,38 +1,26 @@
-error[E0308]: mismatched types
-  --> $DIR/unsized_coercion5.rs:16:32
-   |
-LL |         let y: Box<dyn Send> = x as Box<dyn Trait + Send>;
-   |                -------------   ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait `Send`, found trait `Trait + Send`
-   |                |
-   |                expected due to this
-   |
-   = note: expected struct `Box<dyn Send>`
-              found struct `Box<dyn Trait + Send>`
-
 error: cannot check whether the hidden type of opaque type satisfies auto traits
-  --> $DIR/unsized_coercion5.rs:16:32
+  --> $DIR/unsized_coercion5.rs:17:32
    |
 LL |         let y: Box<dyn Send> = x as Box<dyn Trait + Send>;
    |                                ^
    |
    = note: fetching the hidden types of an opaque inside of the defining scope is not supported. You can try moving the opaque type and the item that actually registers a hidden type into a new submodule
 note: opaque type is declared here
-  --> $DIR/unsized_coercion5.rs:13:19
+  --> $DIR/unsized_coercion5.rs:14:19
    |
 LL | fn hello() -> Box<impl Trait + ?Sized> {
    |                   ^^^^^^^^^^^^^^^^^^^
    = note: required for the cast from `Box<impl Trait + ?Sized>` to `Box<dyn Trait + Send>`
 
 error[E0277]: the size for values of type `impl Trait + ?Sized` cannot be known at compilation time
-  --> $DIR/unsized_coercion5.rs:16:32
+  --> $DIR/unsized_coercion5.rs:17:32
    |
 LL |         let y: Box<dyn Send> = x as Box<dyn Trait + Send>;
    |                                ^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `impl Trait + ?Sized`
    = note: required for the cast from `Box<impl Trait + ?Sized>` to `Box<dyn Trait + Send>`
 
-error: aborting due to 3 previous errors
+error: aborting due to 2 previous errors
 
-Some errors have detailed explanations: E0277, E0308.
-For more information about an error, try `rustc --explain E0277`.
+For more information about this error, try `rustc --explain E0277`.

tests/ui/impl-trait/unsized_coercion5.old.stderr

@@ -3,6 +3,7 @@
 
 //@ revisions: next old
 //@[next] compile-flags: -Znext-solver
+//@[next] check-pass
 
 #![feature(trait_upcasting)]
 
@@ -14,9 +15,8 @@ fn hello() -> Box<impl Trait + ?Sized> {
     if true {
         let x = hello();
         let y: Box<dyn Send> = x as Box<dyn Trait + Send>;
-        //[old]~^ ERROR: the size for values of type `impl Trait + ?Sized` cannot be know
+        //[old]~^ ERROR: the size for values of type `impl Trait + ?Sized` cannot be known
         //[old]~| ERROR: cannot check whether the hidden type of opaque type satisfies auto traits
-        //~^^^ ERROR: mismatched types
     }
     Box::new(1u32)
 }