error: an inner attribute is not permitted in this context --> $DIR/attr.rs:5:1 | LL | #![lang = "foo"] | ^^^^^^^^^^^^^^^^ LL | fn foo() {} | ----------- the inner attribute doesn't annotate this function | = note: inner attributes, like `#![no_std]`, annotate the item enclosing them, and are usually found at the beginning of source files help: to annotate the function, change the attribute from inner to outer style | LL - #![lang = "foo"] LL + #[lang = "foo"] | error: aborting due to 1 previous error