error: no rules expected the token `bcd` --> $DIR/trace_faulty_macros.rs:17:26 | 17 | my_faulty_macro!(bcd); //~ ERROR no rules | ^^^ ... 43 | my_faulty_macro!(); | ------------------- in this macro invocation note: trace_macro --> $DIR/trace_faulty_macros.rs:43:5 | 43 | my_faulty_macro!(); | ^^^^^^^^^^^^^^^^^^^ | = note: expanding `my_faulty_macro! { }` = note: to `my_faulty_macro ! ( bcd ) ;` = note: expanding `my_faulty_macro! { bcd }` error: recursion limit reached while expanding the macro `my_recursive_macro` --> $DIR/trace_faulty_macros.rs:32:9 | 32 | my_recursive_macro!(); //~ ERROR recursion limit | ^^^^^^^^^^^^^^^^^^^^^^ ... 44 | my_recursive_macro!(); | ---------------------- in this macro invocation | = help: consider adding a `#![recursion_limit="8"]` attribute to your crate note: trace_macro --> $DIR/trace_faulty_macros.rs:44:5 | 44 | my_recursive_macro!(); | ^^^^^^^^^^^^^^^^^^^^^^ | = note: expanding `my_recursive_macro! { }` = note: to `my_recursive_macro ! ( ) ;` = note: expanding `my_recursive_macro! { }` = note: to `my_recursive_macro ! ( ) ;` = note: expanding `my_recursive_macro! { }` = note: to `my_recursive_macro ! ( ) ;` = note: expanding `my_recursive_macro! { }` = note: to `my_recursive_macro ! ( ) ;` = note: expanding `my_recursive_macro! { }` = note: to `my_recursive_macro ! ( ) ;`