error[E0658]: the `#[panic_runtime]` attribute is an experimental feature
  --> $DIR/needs-gate.rs:4:1
   |
LL | #![panic_runtime]
   | ^^^^^^^^^^^^^^^^^
   |
   = note: see issue #32837 <https://github.com/rust-lang/rust/issues/32837> for more information
   = help: add `#![feature(panic_runtime)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the `#[needs_panic_runtime]` attribute is an experimental feature
  --> $DIR/needs-gate.rs:5:1
   |
LL | #![needs_panic_runtime]
   | ^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #32837 <https://github.com/rust-lang/rust/issues/32837> for more information
   = help: add `#![feature(needs_panic_runtime)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0658`.