#[cfg_attr] //~ ERROR expected `(`, found `<eof>` | |
struct S1; | |
#[cfg_attr = ""] //~ ERROR expected `(`, found `=` | |
struct S2; | |
#[derive] //~ ERROR attribute must be of the form | |
struct S3; | |
#[derive = ""] //~ ERROR attribute must be of the form | |
struct S4; | |
fn main() {} |