message: Work around AppVeyor for now
diff: environment:
  +
  + # At the time this was added AppVeyor was having troubles with checking
  + # revocation of SSL certificates of sites like static.rust-lang.org and what
  + # we think is crates.io. The libcurl HTTP client by default checks for
  + # revocation on Windows and according to a mailing list [1] this can be
  + # disabled.
  + #
  + # The `CARGO_HTTP_CHECK_REVOKE` env var here tells cargo to disable SSL
  + # revocation checking on Windows in libcurl. Note, though, that rustup, which
  + # we're using to download Rust here, also uses libcurl as the default backend.
  + # Unlike Cargo, however, rustup doesn't have a mechanism to disable revocation
  + # checking. To get rustup working we set `RUSTUP_USE_HYPER` which forces it to
  + # use the Hyper instead of libcurl backend. Both Hyper and libcurl use
  + # schannel on Windows but it appears that Hyper configures it slightly
  + # differently such that revocation checking isn't turned on by default.
  + #
  + # [1]: https://curl.haxx.se/mail/lib-2016-03/0202.html
  + RUSTUP_USE_HYPER: 1
  + CARGO_HTTP_CHECK_REVOKE: false
  +
  matrix:
  - TARGET: x86_64-pc-windows-msvc
  OTHER_TARGET: i686-pc-windows-msvc
  