1error: no rules expected the token `"2"` 2 --> tests/ui/missing_comma.rs:4:21 3 | 44 | json!({ "1": "" "2": "" }); 5 | -^^^ no rules expected this token in macro call 6 | | 7 | help: missing comma here 8 | 9note: while trying to match `,` 10 --> src/macros.rs 11 | 12 | ($e:expr , $($tt:tt)*) => {}; 13 | ^ 14