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error[E0658]: `?` is not allowed on `Option<()>` in constant functions
--> $DIR/const-try-feature-gate.rs:4:5
|
LL | Some(())?;
| ^^^^^^^^^
|
= note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
= note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information
= help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error: `Try` is not yet stable as a const trait
--> $DIR/const-try-feature-gate.rs:4:5
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LL | Some(())?;
| ^^^^^^^^^
|
help: add `#![feature(const_try)]` to the crate attributes to enable
|
LL + #![feature(const_try)]
|
error[E0658]: `?` is not allowed on `Option<()>` in constant functions
--> $DIR/const-try-feature-gate.rs:4:5
|
LL | Some(())?;
| ^^^^^^^^^
|
= note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
= note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information
= help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error: `FromResidual` is not yet stable as a const trait
--> $DIR/const-try-feature-gate.rs:4:5
|
LL | Some(())?;
| ^^^^^^^^^
|
help: add `#![feature(const_try)]` to the crate attributes to enable
|
LL + #![feature(const_try)]
|
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0658`.
|
