1 error[E0659]: `empty_helper` is ambiguous (derive helper attribute vs any other name)
2 --> $DIR/helper-attr-blocked-by-import-ambig.rs:7:3
5 | ^^^^^^^^^^^^ ambiguous name
7 note: `empty_helper` could refer to the derive helper attribute defined here
8 --> $DIR/helper-attr-blocked-by-import-ambig.rs:10:10
12 note: `empty_helper` could also refer to the attribute macro imported here
13 --> $DIR/helper-attr-blocked-by-import-ambig.rs:5:5
15 LL | use test_macros::empty_attr as empty_helper;
16 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
17 = help: use `crate::empty_helper` to refer to this attribute macro unambiguously
19 warning: derive helper attribute is used before it is introduced
20 --> $DIR/helper-attr-blocked-by-import-ambig.rs:7:3
26 | ----- the attribute is introduced here
28 = note: `#[warn(legacy_derive_helpers)]` on by default
29 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
30 = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
32 error: aborting due to previous error; 1 warning emitted
34 For more information about this error, try `rustc --explain E0659`.