1 error[E0642]: patterns aren't allowed in methods without bodies
2 --> $DIR/issue-50571.rs:4:12
4 LL | fn foo([a, b]: [i32; 2]) {}
7 help: give this argument a name or use an underscore to ignore it
9 LL | fn foo(_: [i32; 2]) {}
12 error: aborting due to previous error
14 For more information about this error, try `rustc --explain E0642`.