mirror of https://github.com/rust-lang/rust
30 lines
1.3 KiB
Plaintext
30 lines
1.3 KiB
Plaintext
error[E0038]: the trait `issue_3907::Foo` cannot be made into an object
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--> $DIR/issue-3907-2.rs:11:12
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LL | fn bar(_x: Foo) {}
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| ^^^ `issue_3907::Foo` cannot be made into an object
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note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
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--> $DIR/auxiliary/issue-3907.rs:2:8
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LL | fn bar();
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| ^^^ the trait cannot be made into an object because associated function `bar` has no `self` parameter
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error[E0277]: the size for values of type `(dyn issue_3907::Foo + 'static)` cannot be known at compilation time
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--> $DIR/issue-3907-2.rs:11:8
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LL | fn bar(_x: Foo) {}
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| ^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `(dyn issue_3907::Foo + 'static)`
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= help: unsized fn params are gated as an unstable feature
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help: function arguments must have a statically known size, borrowed types always have a known size
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LL | fn bar(_x: &Foo) {}
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| +
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0038, E0277.
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For more information about an error, try `rustc --explain E0038`.
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