| 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: see issue #29598 <https://github.com/rust-lang/rust/issues/29598> for more information | |
| = 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`. |