| 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| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date |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 |
| | |
| LL + #![feature(const_trait_impl)] |
| | |
| |
| 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 |
| | |
| LL + #![feature(const_trait_impl)] |
| | |
| |
| error: aborting due to 3 previous errors |
| |
| Some errors have detailed explanations: E0015, E0658. |
| For more information about an error, try `rustc --explain E0015`. |
