|  | error: invalid format string: expected `}` but string was terminated | 
|  | --> $DIR/issue-51848.rs:6:20 | 
|  | | | 
|  | LL |         println!("{"); | 
|  | |                   -^ expected `}` in format string | 
|  | |                   | | 
|  | |                   because of this opening brace | 
|  | ... | 
|  | LL |     macro_with_error!(); | 
|  | |     ------------------- in this macro invocation | 
|  | | | 
|  | = note: if you intended to print `{`, you can escape it using `{{` | 
|  | = note: this error originates in the macro `macro_with_error` (in Nightly builds, run with -Z macro-backtrace for more info) | 
|  |  | 
|  | error: invalid format string: unmatched `}` found | 
|  | --> $DIR/issue-51848.rs:18:15 | 
|  | | | 
|  | LL |     println!("}"); | 
|  | |               ^ unmatched `}` in format string | 
|  | | | 
|  | = note: if you intended to print `}`, you can escape it using `}}` | 
|  |  | 
|  | error: aborting due to 2 previous errors | 
|  |  |