error[E0658]: repr with 128-bit type is unstable | |
--> $DIR/E0658.rs:2:1 | |
| | |
LL | enum Foo { | |
| ^^^^^^^^ | |
| | |
= note: see issue #56071 <https://github.com/rust-lang/rust/issues/56071> for more information | |
= help: add `#![feature(repr128)]` 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date | |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 1 previous error | |
For more information about this error, try `rustc --explain E0658`. |