match_token was bumped to 0.1.1 in #621 and contains a breaking change coming from #593, it should have been a bump to 0.2.0 as 0.1.0 to 0.1.1 isn't considered a breaking change.
The consequence of that, is anyone that is using html5ever 0.31 will now attempt to build it against match_token 0.1.1 resulting in a compilation error. Publishing html5ever 0.32 won't solve the issue as Cargo won't use the version 0.32 when the requirements is ^0.31. Therefore, the only solution is to yank the version 0.1.1 of match_token and re-publish it with the version 0.2.0.
Since html5ever is widely used, this issue will impact a large number of users, such as our current inability to install mdbook, which depends on ammonia, which in turn depends on html5ever 0.31.
Thanks