src/test/ui/feature-gates/feature-gate-concat_idents2.stderr


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error[E0658]: `concat_idents` is not stable enough for use and is subject to change
  --> $DIR/feature-gate-concat_idents2.rs:4:5
   |
LL |     concat_idents!(a, b);
   |     ^^^^^^^^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/29599
   = help: add #![feature(concat_idents)] to the crate attributes to enable

error[E0425]: cannot find value `ab` in this scope
  --> $DIR/feature-gate-concat_idents2.rs:4:5
   |
LL |     concat_idents!(a, b);
   |     ^^^^^^^^^^^^^^^^^^^^^ not found in this scope

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0425, E0658.
For more information about an error, try `rustc --explain E0425`.