Tests broken on master

[Dirbaio]

It's due to changes in nightly.

Works with nightly-2020-08-17 rustc 1.47.0-nightly (7e6d6e5f5 2020-08-16)
Broken with nightly-2020-08-18 rustc 1.47.0-nightly (792c645ca 2020-08-17)

Travis doesn't have a fixed nightly version, this is why tests that passed before can break without changing anything in the code.

[Dirbaio]

I'm pretty sure it's a Rust bug. This tiny test fails on the broken Rust versions:

    #[test]
    fn test_quash_psh() {
        assert_eq!(Control::Psh.quash_psh(), Control::None);
    }

Actually I just updated my nightly and it's fixed in 2020-09-19.

Seems to be this: rust-lang/rust#76803

[Dirbaio]

Yep, I just pushed to #346 and tests are passing.