|  | error[E0425]: cannot find value `fake` in this scope | 
|  | --> $DIR/macro-backtrace-nested.rs:5:12 | 
|  | | | 
|  | LL |     () => (fake) | 
|  | |            ^^^^ not found in this scope | 
|  | ... | 
|  | LL |     1 + call_nested_expr!(); | 
|  | |         ------------------- in this macro invocation | 
|  | | | 
|  | = note: this error originates in the macro `nested_expr` which comes from the expansion of the macro `call_nested_expr` (in Nightly builds, run with -Z macro-backtrace for more info) | 
|  |  | 
|  | error[E0425]: cannot find value `fake` in this scope | 
|  | --> $DIR/macro-backtrace-nested.rs:5:12 | 
|  | | | 
|  | LL |     () => (fake) | 
|  | |            ^^^^ not found in this scope | 
|  | ... | 
|  | LL |     call_nested_expr_sum!(); | 
|  | |     ----------------------- in this macro invocation | 
|  | | | 
|  | = note: this error originates in the macro `nested_expr` which comes from the expansion of the macro `call_nested_expr_sum` (in Nightly builds, run with -Z macro-backtrace for more info) | 
|  |  | 
|  | error: aborting due to 2 previous errors | 
|  |  | 
|  | For more information about this error, try `rustc --explain E0425`. |