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``` error: `S2<'_>` is forbidden as the type of a const generic parameter --> $DIR/lifetime-in-const-param.rs:5:23 | LL | struct S<'a, const N: S2>(&'a ()); | ^^ | = note: the only supported types are integers, `bool` and `char` help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types | LL + #![feature(adt_const_params)] | ``` Fix #55941.
51 lines
1.9 KiB
Plaintext
51 lines
1.9 KiB
Plaintext
error[E0658]: `for` is not allowed in a `const`
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--> $DIR/const-for-feature-gate.rs:4:5
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LL | for _ in 0..5 {}
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| ^^^^^^^^^^^^^^^^
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= note: see issue #87575 <https://github.com/rust-lang/rust/issues/87575> for more information
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= help: add `#![feature(const_for)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0015]: cannot convert `std::ops::Range<i32>` into an iterator in constants
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--> $DIR/const-for-feature-gate.rs:4:14
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LL | for _ in 0..5 {}
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| ^^^^
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note: impl defined here, but it is not `const`
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--> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL
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= note: calls in constants are limited to constant functions, tuple structs and tuple variants
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help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
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LL + #![feature(const_trait_impl)]
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error[E0658]: mutable references are not allowed in constants
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--> $DIR/const-for-feature-gate.rs:4:14
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LL | for _ in 0..5 {}
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| ^^^^
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= note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
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= help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0015]: cannot call non-const fn `<std::ops::Range<i32> as Iterator>::next` in constants
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--> $DIR/const-for-feature-gate.rs:4:14
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LL | for _ in 0..5 {}
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| ^^^^
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= note: calls in constants are limited to constant functions, tuple structs and tuple variants
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help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
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LL + #![feature(const_trait_impl)]
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error: aborting due to 4 previous errors
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Some errors have detailed explanations: E0015, E0658.
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For more information about an error, try `rustc --explain E0015`.
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