error: cannot find derive macro `x3300` in this scope --> $DIR/issue-43106-gating-of-derive-2.rs:14:14 | LL | #[derive(x3300)] | ^^^^^ error: cannot find derive macro `x3300` in this scope --> $DIR/issue-43106-gating-of-derive-2.rs:14:14 | LL | #[derive(x3300)] | ^^^^^ error: cannot find derive macro `x3300` in this scope --> $DIR/issue-43106-gating-of-derive-2.rs:9:14 | LL | #[derive(x3300)] | ^^^^^ error: cannot find derive macro `x3300` in this scope --> $DIR/issue-43106-gating-of-derive-2.rs:9:14 | LL | #[derive(x3300)] | ^^^^^ error: cannot find derive macro `x3300` in this scope --> $DIR/issue-43106-gating-of-derive-2.rs:4:14 | LL | #[derive(x3300)] | ^^^^^ error: cannot find derive macro `x3300` in this scope --> $DIR/issue-43106-gating-of-derive-2.rs:4:14 | LL | #[derive(x3300)] | ^^^^^ error: aborting due to 6 previous errors