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warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/E0520.rs:1:12
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LL | #![feature(specialization)]
| ^^^^^^^^^^^^^^
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= note: `#[warn(incomplete_features)]` on by default
= note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
error[E0520]: `fly` specializes an item from a parent `impl`, but that item is not marked `default`
--> $DIR/E0520.rs:17:5
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LL | / impl<T: Clone> SpaceLlama for T {
LL | | fn fly(&self) {}
LL | | }
| |_- parent `impl` is here
...
LL | default fn fly(&self) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^ cannot specialize default item `fly`
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= note: to specialize, `fly` in the parent `impl` must be marked `default`
error: aborting due to previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0520`.
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