// run-fail// error-pattern:Number is odd// ignore-emscripten no processesfneven(x: usize)-> bool{ifx<2{returnfalse;}elseifx==2{returntrue;}else{returneven(x-2);}}fnfoo(x: usize){ifeven(x){println!("{}",x);}else{panic!("Number is odd");}}fnmain(){foo(3);}