error: expected nightly date, like 2020-02-25 --> tests/ui/bad-date.rs:1:24 | 1 | #[rustversion::nightly(stable)] | ^^^^^^ error: expected nightly date, like 2020-02-25 --> tests/ui/bad-date.rs:4:28 | 4 | #[rustversion::any(nightly(stable))] | ^^^^^^