error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable | |
--> $DIR/bench.rs:1:3 | |
| | |
LL | #[bench] | |
| ^^^^^ | |
| | |
= note: `#[deny(soft_unstable)]` on by default | |
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
= note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266> | |
error: aborting due to previous error | |