error[E0596]: cannot borrow immutable borrowed content as mutable | |
--> $DIR/issue-19163.rs:19:14 | |
| | |
LL | mywrite!(&v, "Hello world"); | |
| ^^ cannot borrow as mutable | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0596`. |