warning[E0705]: the feature `test_2018_feature` is included in the Rust 2018 edition | |
--> $DIR/E0705.rs:6:12 | |
| | |
LL | #![feature(test_2018_feature)] | |
| ^^^^^^^^^^^^^^^^^ | |
warning: 1 warning emitted | |
For more information about this error, try `rustc --explain E0705`. |