error: suffixed literals are not allowed in attributes
  --> $DIR/invalid-rustc_args_required_const-arguments.rs:18:29
   |
LL | #[rustc_args_required_const(0usize)]
   |                             ^^^^^^
   |
   = help: instead of using a suffixed literal (`1u8`, `1.0f32`, etc.), use an unsuffixed version (`1`, `1.0`, etc.)

error: index exceeds number of arguments
  --> $DIR/invalid-rustc_args_required_const-arguments.rs:3:29
   |
LL | #[rustc_args_required_const(0)]
   |                             ^ there are only 0 arguments

error: index exceeds number of arguments
  --> $DIR/invalid-rustc_args_required_const-arguments.rs:6:29
   |
LL | #[rustc_args_required_const(1)]
   |                             ^ there is only 1 argument

error: arguments should be non-negative integers
  --> $DIR/invalid-rustc_args_required_const-arguments.rs:9:29
   |
LL | #[rustc_args_required_const(a)]
   |                             ^

error: arguments should be non-negative integers
  --> $DIR/invalid-rustc_args_required_const-arguments.rs:12:32
   |
LL | #[rustc_args_required_const(1, a, 2, b)]
   |                                ^     ^

error: attribute should be applied to a function
  --> $DIR/invalid-rustc_args_required_const-arguments.rs:15:1
   |
LL | #[rustc_args_required_const(0)]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL | struct S;
   | --------- not a function

error: index exceeds number of arguments
  --> $DIR/invalid-rustc_args_required_const-arguments.rs:22:33
   |
LL |     #[rustc_args_required_const(1)]
   |                                 ^ there is only 1 argument

error: aborting due to 7 previous errors