| error: expected identifier, found metavariable |
| --> $DIR/cfg_attr-expr.rs:3:26 |
| | |
| LL | #[cfg_attr(true, $e)] |
| | -----------------^^-- |
| | | | |
| | | expected identifier, found metavariable |
| | help: must be of the form: `#[cfg_attr(predicate, attr1, attr2, ...)]` |
| ... |
| LL | foo!(inline); |
| | ------------ in this macro invocation |
| | |
| = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute> |
| = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info) |
| |
| error: aborting due to 1 previous error |
| |
