1 error: anonymous parameters are deprecated and will be removed in the next edition.
2 --> $DIR/future-incompatible-lint-group.rs:4:10
5 | ^^ help: Try naming the parameter or explicitly ignoring it: `_: u8`
7 note: lint level defined here
8 --> $DIR/future-incompatible-lint-group.rs:1:9
10 LL | #![deny(future_incompatible)]
12 = note: `#[deny(anonymous_parameters)]` implied by `#[deny(future_incompatible)]`
13 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
14 = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
16 error: aborting due to previous error