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940376f1b1
don't link to the nightly version of the Edition Guide in stable lints As reported in rust-lang/rust#143557 for `rust_2024_incompatible_pat`, most future-Edition-incompatibility lints link to the nightly version of the Edition Guide; the lints were written before their respective Editions (and their guides) stabilized. But now that Rusts 2021 and 2024 are stable, these lints are emitted on stable versions of the compiler, where it makes more sense to present users with links that don't say "nightly" in them. This does not change the link for `rust_2024_incompatible_pat`. That's handled in rust-lang/rust#144006.
95 lines
4.6 KiB
Plaintext
95 lines
4.6 KiB
Plaintext
error: relaxed bounds are not permitted in trait object types
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--> $DIR/trait-object-trait-parens.rs:8:24
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LL | let _: Box<(Obj) + (?Sized) + (for<'a> Trait<'a>)>;
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| ^^^^^^^^
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error: relaxed bounds are not permitted in trait object types
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--> $DIR/trait-object-trait-parens.rs:13:16
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LL | let _: Box<?Sized + (for<'a> Trait<'a>) + (Obj)>;
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| ^^^^^^
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error: relaxed bounds are not permitted in trait object types
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--> $DIR/trait-object-trait-parens.rs:18:44
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LL | let _: Box<for<'a> Trait<'a> + (Obj) + (?Sized)>;
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| ^^^^^^^^
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warning: trait objects without an explicit `dyn` are deprecated
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--> $DIR/trait-object-trait-parens.rs:8:16
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LL | let _: Box<(Obj) + (?Sized) + (for<'a> Trait<'a>)>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
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= note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
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= note: `#[warn(bare_trait_objects)]` on by default
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help: if this is a dyn-compatible trait, use `dyn`
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LL | let _: Box<dyn (Obj) + (?Sized) + (for<'a> Trait<'a>)>;
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| +++
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error[E0225]: only auto traits can be used as additional traits in a trait object
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--> $DIR/trait-object-trait-parens.rs:8:35
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LL | let _: Box<(Obj) + (?Sized) + (for<'a> Trait<'a>)>;
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| ----- ^^^^^^^^^^^^^^^^^^^ additional non-auto trait
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| first non-auto trait
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= 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> {}`
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= 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>
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warning: trait objects without an explicit `dyn` are deprecated
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--> $DIR/trait-object-trait-parens.rs:13:16
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LL | let _: Box<?Sized + (for<'a> Trait<'a>) + (Obj)>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
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= note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
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help: if this is a dyn-compatible trait, use `dyn`
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LL | let _: Box<dyn ?Sized + (for<'a> Trait<'a>) + (Obj)>;
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| +++
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error[E0225]: only auto traits can be used as additional traits in a trait object
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--> $DIR/trait-object-trait-parens.rs:13:47
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LL | let _: Box<?Sized + (for<'a> Trait<'a>) + (Obj)>;
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| ------------------- ^^^^^ additional non-auto trait
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| |
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| first non-auto trait
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= 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 {}`
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= 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>
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warning: trait objects without an explicit `dyn` are deprecated
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--> $DIR/trait-object-trait-parens.rs:18:16
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LL | let _: Box<for<'a> Trait<'a> + (Obj) + (?Sized)>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
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= note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
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help: if this is a dyn-compatible trait, use `dyn`
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LL | let _: Box<dyn for<'a> Trait<'a> + (Obj) + (?Sized)>;
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| +++
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error[E0225]: only auto traits can be used as additional traits in a trait object
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--> $DIR/trait-object-trait-parens.rs:18:36
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LL | let _: Box<for<'a> Trait<'a> + (Obj) + (?Sized)>;
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| ----------------- ^^^^^ additional non-auto trait
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| first non-auto trait
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= 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 {}`
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= 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>
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error: aborting due to 6 previous errors; 3 warnings emitted
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For more information about this error, try `rustc --explain E0225`.
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