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error[E0635]: unknown feature `const_default_impls`
--> $DIR/std-impl-gate.rs:6:46
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LL | #![cfg_attr(gated, feature(const_trait_impl, const_default_impls))]
| ^^^^^^^^^^^^^^^^^^^
error[E0015]: cannot call non-const fn `<Vec<usize> as Default>::default` in constant functions
--> $DIR/std-impl-gate.rs:13:5
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LL | Default::default()
| ^^^^^^^^^^^^^^^^^^
|
= note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
= help: add `#![feature(effects)]` to the crate attributes to enable
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0015, E0635.
For more information about an error, try `rustc --explain E0015`.
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