error[E0658]: or-pattern is not allowed in a `const fn`
  --> $DIR/feature-gate-const-fn.rs:4:15
   |
LL | const fn foo((Ok(a) | Err(a)): Result<i32, i32>) {
   |               ^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/49146
   = help: add `#![feature(const_if_match)]` to the crate attributes to enable

error[E0658]: or-pattern is not allowed in a `const fn`
  --> $DIR/feature-gate-const-fn.rs:7:9
   |
LL |     let Ok(y) | Err(y) = x;
   |         ^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/49146
   = help: add `#![feature(const_if_match)]` to the crate attributes to enable

error[E0658]: or-pattern is not allowed in a `const`
  --> $DIR/feature-gate-const-fn.rs:13:9
   |
LL |     let Ok(y) | Err(y) = x;
   |         ^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/49146
   = help: add `#![feature(const_if_match)]` to the crate attributes to enable

error[E0658]: or-pattern is not allowed in a `static`
  --> $DIR/feature-gate-const-fn.rs:19:9
   |
LL |     let Ok(y) | Err(y) = x;
   |         ^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/49146
   = help: add `#![feature(const_if_match)]` to the crate attributes to enable

error[E0658]: or-pattern is not allowed in a `static mut`
  --> $DIR/feature-gate-const-fn.rs:25:9
   |
LL |     let Ok(y) | Err(y) = x;
   |         ^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/49146
   = help: add `#![feature(const_if_match)]` to the crate attributes to enable

error[E0658]: or-pattern is not allowed in a `const`
  --> $DIR/feature-gate-const-fn.rs:32:13
   |
LL |         let Ok(y) | Err(y) = x;
   |             ^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/49146
   = help: add `#![feature(const_if_match)]` to the crate attributes to enable

error: aborting due to 6 previous errors

For more information about this error, try `rustc --explain E0658`.