error[E0573]: expected type, found variant `Alpha::One` --> $DIR/feature-gate-offset-of-enum.rs:11:16 | LL | offset_of!(Alpha::One, 0); | ^^^^^^^^^^ | | | not a type | help: try using the variant's enum: `Alpha` error[E0658]: using enums in offset_of is experimental --> $DIR/feature-gate-offset-of-enum.rs:12:23 | LL | offset_of!(Alpha, One); | ^^^ | = note: see issue #120141 for more information = help: add `#![feature(offset_of_enum)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0795]: `One` is an enum variant; expected field at end of `offset_of` --> $DIR/feature-gate-offset-of-enum.rs:12:23 | LL | offset_of!(Alpha, One); | ^^^ enum variant error[E0658]: using enums in offset_of is experimental --> $DIR/feature-gate-offset-of-enum.rs:14:23 | LL | offset_of!(Alpha, Two.0); | ^^^ | = note: see issue #120141 for more information = help: add `#![feature(offset_of_enum)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error: aborting due to 4 previous errors Some errors have detailed explanations: E0573, E0658, E0795. For more information about an error, try `rustc --explain E0573`.