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 error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0658`.