CI check of Redox and Fuschia is broken

[Thomasdezeeuw]

See https://github.com/rust-lang/socket2/runs/1608768010. It has errors, but still gives an OK result.

[tamird]

Probably should keep this issue open until the CI is passing, yeah? For Fuchsia, that requires rust-lang/libc#2010 and rust-lang/libc#2011.

[Thomasdezeeuw]

@tamird I'm tracking it in #78.

[Thomasdezeeuw]

This is issue was just that even if the check failed the CI would report an OK status, #78 is tracking CI support for various targets.