warning: `macro` is experimental --> $DIR/soft-syntax-gates-without-errors.rs:6:1 | LL | macro b() {} | ^^^^^^^^^^^^ | = note: see issue #39412 for more information = help: add `#![feature(decl_macro)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date = warning: unstable syntax can change at any point in the future, causing a hard error! = note: for more information, see issue #65860 warning: `macro` is experimental --> $DIR/soft-syntax-gates-without-errors.rs:21:5 | LL | macro e() {} | ^^^^^^^^^^^^ | = note: see issue #39412 for more information = help: add `#![feature(decl_macro)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date = warning: unstable syntax can change at any point in the future, causing a hard error! = note: for more information, see issue #65860 warning: 2 warnings emitted