src/test/rustdoc-ui/rustc-check-passes.stderr


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error[E0636]: the feature `box_syntax` has already been declared
  --> $DIR/rustc-check-passes.rs:2:12
   |
LL | #![feature(box_syntax)]
   |            ^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0636`.