Help test out ThinLTO!

Thanks for testing out! Which nightly were you using perchance? Using rustc 1.22.0-nightly (692b94ae2 2017-10-09) I get an error like:

error: `std::sync::atomic::AtomicBool::new` is not yet stable as a const fn
   --> /home/alex/.cargo/registry/src/github.com-1ecc6299db9ec823/yansi-0.3.2/src/lib.rs:479:57
    |
479 | #[cfg(feature="nightly")] static DISABLED: AtomicBool = AtomicBool::new(false);
    |                                                         ^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: in Nightly builds, add `#![feature(const_atomic_bool_new)]` to the crate attributes to enable

error: aborting due to previous error

so I haven’t been able to reproduce yet :frowning: