r? @nikomatsakis

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@bors: r+ 4e4e300

Thanks!

⌛ Testing commit 4e4e300 with merge 58c6223...

💔 Test failed - auto-mac-32-opt

The failing code is in vec-fixed-length.rs:

if cfg!(target_pointer_width = "64") {
    assert_eq!(size_of::<[u8; (1 << 32)]>(), (1 << 32));
}

It fails because the left shifts will overflow on 32 bit. Perhaps we should replace the if cfg!(...) with a #[cfg(...)] so that this code isn't compiled (and doesn't error) on 32 bit platforms?

Hm, that doesn't work either, because RFC 16 wasn't implemented fully. I have added a quite nasty workaround (introduced a test function whose implementation is different dependent on target_pointer_width).

@alexcrichton retry?

@bors: r+ e7d052e

⌛ Testing commit e7d052e with merge 9b481f8...

☀️ Test successful - auto-linux-32-nopt-t, auto-linux-32-opt, auto-linux-64-nopt-t, auto-linux-64-opt, auto-linux-64-x-android-t, auto-mac-32-opt, auto-mac-64-nopt-t, auto-mac-64-opt, auto-win-32-nopt-t, auto-win-32-opt, auto-win-64-nopt-t, auto-win-64-opt