bindgen 0.20.0

macro_rules! log {
    (target: $target:expr, $lvl:expr, $($arg)+) => {
        let _ = $target;
        let _ = log!($lvl, $($arg)+);
    };
    ($lvl:expr, $($arg:tt)+) => {
        let _ = $lvl;
        let _ = format_args!($($arg)+);
    };
}
macro_rules! error {
    (target: $target:expr, $($arg:tt)*) => { log!($target, $($arg)*); };
    ($($arg:tt)*) => { log!("", $($arg)*); };
}
macro_rules! warn {
    (target: $target:expr, $($arg:tt)*) => { log!($target, $($arg)*); };
    ($($arg:tt)*) => { log!("", $($arg)*); };
}
macro_rules! info {
    (target: $target:expr, $($arg:tt)*) => { log!($target, $($arg)*); };
    ($($arg:tt)*) => { log!("", $($arg)*); };
}
macro_rules! debug {
    (target: $target:expr, $($arg:tt)*) => { log!($target, $($arg)*); };
    ($($arg:tt)*) => { log!("", $($arg)*); };
}
macro_rules! trace {
    (target: $target:expr, $($arg:tt)*) => { log!($target, $($arg)*); };
    ($($arg:tt)*) => { log!("", $($arg)*); };
}