error[E0658]: the `#[omit_gdb_pretty_printer_section]` attribute is just used for the Rust test suite
  --> $DIR/feature-gate-omit-gdb-pretty-printer-section.rs:1:1
   |
LL | #[omit_gdb_pretty_printer_section]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: add `#![feature(omit_gdb_pretty_printer_section)]` 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   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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 1 previous error

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