proc-macro-hack 0.5.20+deprecated

Procedural macros in expression position
Documentation
1
2
3
4
5
error: expected one of: `support_nested`, `internal_macro_calls`, `fake_call_site`, `only_hack_old_rustc`
 --> tests/ui/unknown-arg.rs:3:35
  |
3 | #[proc_macro_hack(fake_call_site, support_nexted)]
  |                                   ^^^^^^^^^^^^^^