error[E0658]: parentheses in patterns are unstable (see issue #51087) | |
--> $DIR/feature-gate-pattern_parentheses.rs:13:9 | |
| | |
LL | (pat) => {} //~ ERROR parentheses in patterns are unstable | |
| ^^^^^ | |
| | |
= help: add #![feature(pattern_parentheses)] to the crate attributes to enable | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0658`. |