1 error[E0658]: language items are subject to change
2 --> $DIR/feature-gate-lang-items.rs:1:1
4 LL | #[lang = "foo"] //~ ERROR language items are subject to change
7 = help: add #![feature(lang_items)] to the crate attributes to enable
9 error[E0522]: definition of an unknown language item: `foo`
10 --> $DIR/feature-gate-lang-items.rs:1:1
12 LL | #[lang = "foo"] //~ ERROR language items are subject to change
13 | ^^^^^^^^^^^^^^^ definition of unknown language item `foo`
15 error: aborting due to 2 previous errors
17 Some errors occurred: E0522, E0658.
18 For more information about an error, try `rustc --explain E0522`.