| error: unexpected end of macro invocation | |
| --> $DIR/missing_colon.rs:4:5 | |
| | | |
| 4 | json!({ "a" }); | |
| | ^^^^^^^^^^^^^^^ missing tokens in macro arguments | |
| | | |
| = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) | |
| error: aborting due to previous error | |