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  1. fn main() {
  2.     println!("{:?}", {
  3.         mod fuck_macro {macro_rules! fuck { ($($t:tt)*) => { panic!($($t)*) } }  } use fuck_macro::fuck;
  4.     });
  5. }
  6.  
  7.  
  8. /* ~~~~=== stderr ===~~~~
  9.    Compiling playground v0.0.1 (file:///playground)
  10. error[E0432]: unresolved import `fuck_macro`
  11.  --> src/main.rs:5:88
  12.   |
  13. 5 |         mod fuck_macro {macro_rules! fuck { ($($t:tt)*) => { panic!($($t)*) } }  } use fuck_macro::fuck;
  14.   |                                                                                        ^^^^^^^^^^ Maybe a missing `extern crate fuck_macro;`?
  15.  
  16. warning: unused macro definition
  17.  --> src/main.rs:5:25
  18.   |
  19. 5 |         mod fuck_macro {macro_rules! fuck { ($($t:tt)*) => { panic!($($t)*) } }  } use fuck_macro::fuck;
  20.   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  21.   |
  22.   = note: #[warn(unused_macros)] on by default
  23.  
  24. warning: unused import: `fuck_macro::fuck`
  25.  --> src/main.rs:5:88
  26.   |
  27. 5 |         mod fuck_macro {macro_rules! fuck { ($($t:tt)*) => { panic!($($t)*) } }  } use fuck_macro::fuck;
  28.   |                                                                                        ^^^^^^^^^^^^^^^^
  29.   |
  30.   = note: #[warn(unused_imports)] on by default
  31.  
  32. error: aborting due to previous error
  33.  
  34. For more information about this error, try `rustc --explain E0432`.
  35. error: Could not compile `playground`.
  36.  
  37. To learn more, run the command again with --verbose.
  38.  
  39. */
  40.  
  41. /* ~~~~=== stdout ===~~~~
  42.  
  43. */
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