error: `default` is not followed by an item
  --> $DIR/keyword-order.rs:3:1
   |
LL | default pub const async unsafe extern fn err() {}
   | ^^^^^^^ the `default` qualifier
   |
   = note: only `fn`, `const`, `type`, or `impl` items may be prefixed by `default`

error: expected item, found keyword `pub`
  --> $DIR/keyword-order.rs:3:9
   |
LL | default pub const async unsafe extern fn err() {}
   |         ^^^ expected item

error: aborting due to 2 previous errors