error: Invalid option `invalid_opt` inside `invalid_opt `
 --> tests/compile-fail/invalid_pgcast_options.rs:3:11
  |
3 | #[pg_cast(invalid_opt)]
  |           ^^^^^^^^^^^

error: failed parsing pg_extern arguments
 --> tests/compile-fail/invalid_pgcast_options.rs:3:11
  |
3 | #[pg_cast(invalid_opt)]
  |           ^^^^^^^^^^^
