gc 0.5.1

Tracing garbage collector plugin for Rust.
Documentation 
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#![feature(test)]

extern crate test;

const THING: u64 = 0;

fn discard(b: &mut test::Bencher, n: usize) {
    b.iter(|| {
        gc::force_collect();
        for _ in 0..n {
            test::black_box(gc::Gc::new(THING));
        }
    });
}
fn keep(b: &mut test::Bencher, n: usize) {
    b.iter(|| {
        gc::force_collect();
        (0..n).map(|_| gc::Gc::new(THING)).collect::<Vec<_>>()
    });
}

#[bench]
fn discard_100(b: &mut test::Bencher) {
    discard(b, 100);
}
#[bench]
fn keep_100(b: &mut test::Bencher) {
    keep(b, 100);
}
#[bench]
fn discard_10000(b: &mut test::Bencher) {
    discard(b, 10_000);
}
#[bench]
fn keep_10000(b: &mut test::Bencher) {
    keep(b, 10_000);
}