error[E0308]: mismatched types
  --> $DIR/array-literal-len-mismatch.rs:1:26
   |
LL | const NUMBERS: [u8; 3] = [10, 20];
   |                     -    ^^^^^^^^ expected an array with a fixed size of 3 elements, found one with 2 elements
   |                     |
   |                     help: consider specifying the actual array length: `2`

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0308`.