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error[E0658]: `?` is not allowed in a `const fn`
--> $DIR/const-try-feature-gate.rs:4:5
|
LL | Some(())?;
| ^^^^^^^^^
|
= note: see issue #74935 <https://github.com/rust-lang/rust/issues/74935> for more information
= help: add `#![feature(const_try)]` 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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[E0015]: `?` cannot determine the branch of `Option<()>` in constant functions
--> $DIR/const-try-feature-gate.rs:4:5
|
LL | Some(())?;
| ^^^^^^^^^
|
note: impl defined here, but it is not `const`
--> $SRC_DIR/core/src/option.rs:LL:COL
= note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
= help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
error[E0015]: `?` cannot convert from residual of `Option<()>` in constant functions
--> $DIR/const-try-feature-gate.rs:4:5
|
LL | Some(())?;
| ^^^^^^^^^
|
note: impl defined here, but it is not `const`
--> $SRC_DIR/core/src/option.rs:LL:COL
= note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
= help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0015, E0658.
For more information about an error, try `rustc --explain E0015`.
|
