--> $DIR/trait-object-trait-parens.rs:8:16
|
LL | let _: Box<(Obj) + (?Sized) + (for<'a> Trait<'a>)>;
- | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (Obj) + (?Sized) + (for<'a> Trait<'a>)`
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `#[warn(bare_trait_objects)]` on by default
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
-
-warning: trait objects without an explicit `dyn` are deprecated
- --> $DIR/trait-object-trait-parens.rs:13:16
- |
-LL | let _: Box<?Sized + (for<'a> Trait<'a>) + (Obj)>;
- | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ?Sized + (for<'a> Trait<'a>) + (Obj)`
+help: use `dyn`
|
- = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
- = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
-
-warning: trait objects without an explicit `dyn` are deprecated
- --> $DIR/trait-object-trait-parens.rs:18:16
- |
-LL | let _: Box<for<'a> Trait<'a> + (Obj) + (?Sized)>;
- | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Trait<'a> + (Obj) + (?Sized)`
- |
- = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
- = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
+LL - let _: Box<(Obj) + (?Sized) + (for<'a> Trait<'a>)>;
+LL + let _: Box<dyn (Obj) + (?Sized) + (for<'a> Trait<'a>)>;
+ |
error[E0225]: only auto traits can be used as additional traits in a trait object
--> $DIR/trait-object-trait-parens.rs:8:35
= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Obj + for<'a> Trait<'a> {}`
= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
+warning: trait objects without an explicit `dyn` are deprecated
+ --> $DIR/trait-object-trait-parens.rs:13:16
+ |
+LL | let _: Box<?Sized + (for<'a> Trait<'a>) + (Obj)>;
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+ = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
+ = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
+help: use `dyn`
+ |
+LL - let _: Box<?Sized + (for<'a> Trait<'a>) + (Obj)>;
+LL + let _: Box<dyn ?Sized + (for<'a> Trait<'a>) + (Obj)>;
+ |
+
error[E0225]: only auto traits can be used as additional traits in a trait object
--> $DIR/trait-object-trait-parens.rs:13:47
|
= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: for<'a> Trait<'a> + Obj {}`
= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
+warning: trait objects without an explicit `dyn` are deprecated
+ --> $DIR/trait-object-trait-parens.rs:18:16
+ |
+LL | let _: Box<for<'a> Trait<'a> + (Obj) + (?Sized)>;
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+ = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
+ = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
+help: use `dyn`
+ |
+LL - let _: Box<for<'a> Trait<'a> + (Obj) + (?Sized)>;
+LL + let _: Box<dyn for<'a> Trait<'a> + (Obj) + (?Sized)>;
+ |
+
error[E0225]: only auto traits can be used as additional traits in a trait object
--> $DIR/trait-object-trait-parens.rs:18:36
|