mirror of https://github.com/rust-lang/rust
79 lines
3.6 KiB
Plaintext
79 lines
3.6 KiB
Plaintext
warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
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--> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:1:12
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LL | #![feature(dyn_star)]
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| ^^^^^^^^
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= note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
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= note: `#[warn(incomplete_features)]` on by default
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error[E0599]: no method named `method` found for type parameter `T` in the current scope
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--> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:24:7
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LL | pub fn in_ty_param<T: Fn() -> dyn std::fmt::Debug> (t: T) {
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| - method `method` not found for this type parameter
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LL | t.method();
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| ^^^^^^ method not found in `T`
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= help: items from traits can only be used if the type parameter is bounded by the trait
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help: the following trait defines an item `method`, perhaps you need to restrict type parameter `T` with it:
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LL | pub fn in_ty_param<T: Fn() -> (dyn std::fmt::Debug) + Trait> (t: T) {
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| + +++++++++
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error[E0277]: the size for values of type `T` cannot be known at compilation time
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--> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:29:21
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LL | fn with_sized<T: Fn() -> &'static (dyn std::fmt::Debug) + ?Sized>() {
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| - this type parameter needs to be `Sized`
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LL | without_sized::<T>();
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| ^ doesn't have a size known at compile-time
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note: required by an implicit `Sized` bound in `without_sized`
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--> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:33:18
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LL | fn without_sized<T: Fn() -> &'static dyn std::fmt::Debug>() {}
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| ^ required by the implicit `Sized` requirement on this type parameter in `without_sized`
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help: consider removing the `?Sized` bound to make the type parameter `Sized`
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LL - fn with_sized<T: Fn() -> &'static (dyn std::fmt::Debug) + ?Sized>() {
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LL + fn with_sized<T: Fn() -> &'static (dyn std::fmt::Debug)>() {
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help: consider relaxing the implicit `Sized` restriction
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LL | fn without_sized<T: Fn() -> &'static (dyn std::fmt::Debug) + ?Sized>() {}
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| + ++++++++++
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error[E0310]: the parameter type `impl FnOnce(T) -> dyn Future<Output = ()>` may not live long enough
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--> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:8:5
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LL | Box::new(executor)
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| ^^^^^^^^^^^^^^^^^^
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| |
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| the parameter type `impl FnOnce(T) -> dyn Future<Output = ()>` must be valid for the static lifetime...
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| ...so that the type `impl FnOnce(T) -> dyn Future<Output = ()>` will meet its required lifetime bounds
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help: consider adding an explicit lifetime bound
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LL | executor: impl FnOnce(T) -> (dyn Future<Output = ()>) + 'static,
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| + +++++++++++
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error[E0310]: the parameter type `impl FnOnce(T) -> Future<Output = ()>` may not live long enough
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--> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:14:5
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LL | Box::new(executor)
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| ^^^^^^^^^^^^^^^^^^
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| |
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| the parameter type `impl FnOnce(T) -> Future<Output = ()>` must be valid for the static lifetime...
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| ...so that the type `impl FnOnce(T) -> Future<Output = ()>` will meet its required lifetime bounds
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help: consider adding an explicit lifetime bound
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LL | executor: impl FnOnce(T) -> (dyn* Future<Output = ()>) + 'static,
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| + +++++++++++
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error: aborting due to 4 previous errors; 1 warning emitted
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Some errors have detailed explanations: E0277, E0310, E0599.
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For more information about an error, try `rustc --explain E0277`.
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