error[E0658]: use of unstable library feature 'log_syntax': `log_syntax!` is not stable enough for use and is subject to change | |
--> $DIR/feature-gate-log_syntax.rs:2:5 | |
| | |
LL | log_syntax!() | |
| ^^^^^^^^^^ | |
| | |
= note: for more information, see https://github.com/rust-lang/rust/issues/29598 | |
= help: add `#![feature(log_syntax)]` to the crate attributes to enable | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0658`. |