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error[E0423]: expected value, found trait `SomeTrait`
--> $DIR/E0033.rs:6:37
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LL | let trait_obj: &dyn SomeTrait = SomeTrait;
| ^^^^^^^^^ not a value
error[E0038]: the trait `SomeTrait` cannot be made into an object
--> $DIR/E0033.rs:6:20
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LL | let trait_obj: &dyn SomeTrait = SomeTrait;
| ^^^^^^^^^^^^^^ `SomeTrait` 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>
--> $DIR/E0033.rs:2:8
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LL | trait SomeTrait {
| --------- this trait cannot be made into an object...
LL | fn foo();
| ^^^ ...because associated function `foo` has no `self` parameter
help: consider turning `foo` into a method by giving it a `&self` argument
|
LL | fn foo(&self);
| +++++
help: alternatively, consider constraining `foo` so it does not apply to trait objects
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LL | fn foo() where Self: Sized;
| +++++++++++++++++
error[E0033]: type `&dyn SomeTrait` cannot be dereferenced
--> $DIR/E0033.rs:10:9
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LL | let &invalid = trait_obj;
| ^^^^^^^^ type `&dyn SomeTrait` cannot be dereferenced
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0033, E0038, E0423.
For more information about an error, try `rustc --explain E0033`.
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