1 error[E0658]: type ascription is experimental
2 --> $DIR/many-type-ascription.rs:2:13
7 = note: see issue #23416 <https://github.com/rust-lang/rust/issues/23416> for more information
8 = help: add `#![feature(type_ascription)]` to the crate attributes to enable
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0658`.