This is a series of already-reviewed changes by @yodalee from #5025, rebased onto current servo master, with some fixups applied:
* Fixed build errors/warnings from the latest rust upgrade.
* Marked `tests/wpt/web-platform-tests/encoding/single-byte-decoder.html` as expecting CRASH.
I could not verify locally that the new test annotation is correct, since the test appears to hang rather than crash on my Linux box. (Or maybe I just didn't wait long enough.) If this crash isn't consistent, or if it takes a long time, maybe we should skip this test instead?
r? @jdm
Source-Repo: https://github.com/servo/servo
Source-Revision: 4846607e189a65baf8d9ac6566594b7893d07f12
