error[E0774]: `derive` may only be applied to `struct`s, `enum`s and `union`s --> $DIR/attributes-on-modules-fail.rs:16:1 | LL | #[derive(Copy)] | ^^^^^^^^^^^^^^^ not applicable here LL | mod n {} | -------- not a `struct`, `enum` or `union` error[E0658]: non-inline modules in proc macro input are unstable --> $DIR/attributes-on-modules-fail.rs:20:1 | LL | mod module; | ^^^^^^^^^^^ | = note: see issue #54727 for more information = help: add `#![feature(proc_macro_hygiene)]` to the crate attributes to enable error[E0658]: non-inline modules in proc macro input are unstable --> $DIR/attributes-on-modules-fail.rs:24:5 | LL | mod inner; | ^^^^^^^^^^ | = note: see issue #54727 for more information = help: add `#![feature(proc_macro_hygiene)]` to the crate attributes to enable error[E0658]: non-inline modules in proc macro input are unstable --> $DIR/attributes-on-modules-fail.rs:33:9 | LL | mod inner; | ^^^^^^^^^^ | = note: see issue #54727 for more information = help: add `#![feature(proc_macro_hygiene)]` to the crate attributes to enable error[E0658]: non-inline modules in proc macro input are unstable --> $DIR/attributes-on-modules-fail.rs:42:5 | LL | mod inner; | ^^^^^^^^^^ | = note: see issue #54727 for more information = help: add `#![feature(proc_macro_hygiene)]` to the crate attributes to enable error[E0412]: cannot find type `Y` in this scope --> $DIR/attributes-on-modules-fail.rs:10:14 | LL | type A = Y; | ^ not found in this scope | help: consider importing this struct | LL | use Y; | error[E0412]: cannot find type `X` in this scope --> $DIR/attributes-on-modules-fail.rs:14:10 | LL | type A = X; | ^ not found in this scope | help: consider importing this struct | LL | use m::X; | error: aborting due to 7 previous errors Some errors have detailed explanations: E0412, E0658, E0774. For more information about an error, try `rustc --explain E0412`.