1 error[E0658]: custom inner attributes are unstable
2 --> $DIR/issue-36530.rs:9:8
7 = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information
8 = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0658`.