gc 0.5.1

Tracing garbage collector plugin for Rust.
Documentation 
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use gc::{Finalize, Gc, Trace};

// This impl should *not* require T: Trace.
#[derive(Finalize, Trace)]
struct Thunk<T>(fn() -> T);

struct NotTrace;

#[test]
fn test_derive_bounds() {
    let _: Gc<Thunk<NotTrace>> = Gc::new(Thunk(|| NotTrace));
}