|  | Function name: async_block::main | 
|  | Raw bytes (41): 0x[01, 01, 01, 05, 01, 07, 01, 07, 01, 00, 0a, 02, 01, 09, 00, 0a, 05, 00, 0e, 00, 13, 02, 01, 0d, 00, 13, 02, 07, 09, 00, 1b, 02, 00, 1c, 00, 22, 01, 02, 01, 00, 02] | 
|  | Number of files: 1 | 
|  | - file 0 => $DIR/async_block.rs | 
|  | Number of expressions: 1 | 
|  | - expression 0 operands: lhs = Counter(1), rhs = Counter(0) | 
|  | Number of file 0 mappings: 7 | 
|  | - Code(Counter(0)) at (prev + 7, 1) to (start + 0, 10) | 
|  | - Code(Expression(0, Sub)) at (prev + 1, 9) to (start + 0, 10) | 
|  | = (c1 - c0) | 
|  | - Code(Counter(1)) at (prev + 0, 14) to (start + 0, 19) | 
|  | - Code(Expression(0, Sub)) at (prev + 1, 13) to (start + 0, 19) | 
|  | = (c1 - c0) | 
|  | - Code(Expression(0, Sub)) at (prev + 7, 9) to (start + 0, 27) | 
|  | = (c1 - c0) | 
|  | - Code(Expression(0, Sub)) at (prev + 0, 28) to (start + 0, 34) | 
|  | = (c1 - c0) | 
|  | - Code(Counter(0)) at (prev + 2, 1) to (start + 0, 2) | 
|  | Highest counter ID seen: c1 | 
|  |  | 
|  | Function name: async_block::main::{closure#0} | 
|  | Raw bytes (31): 0x[01, 01, 01, 01, 05, 05, 01, 09, 1c, 00, 1d, 01, 01, 10, 00, 17, 05, 00, 18, 02, 0e, 02, 02, 14, 02, 0e, 01, 03, 09, 00, 0a] | 
|  | Number of files: 1 | 
|  | - file 0 => $DIR/async_block.rs | 
|  | Number of expressions: 1 | 
|  | - expression 0 operands: lhs = Counter(0), rhs = Counter(1) | 
|  | Number of file 0 mappings: 5 | 
|  | - Code(Counter(0)) at (prev + 9, 28) to (start + 0, 29) | 
|  | - Code(Counter(0)) at (prev + 1, 16) to (start + 0, 23) | 
|  | - Code(Counter(1)) at (prev + 0, 24) to (start + 2, 14) | 
|  | - Code(Expression(0, Sub)) at (prev + 2, 20) to (start + 2, 14) | 
|  | = (c0 - c1) | 
|  | - Code(Counter(0)) at (prev + 3, 9) to (start + 0, 10) | 
|  | Highest counter ID seen: c1 | 
|  |  |