Type inference breakage in 1.80 has not been handled well

[kornel]

Here's a way to remedy this:

Workaround for type inference breakage in the time crate

More discussion:

Brainstorming: how to help old code locked to old `time` build on new toolchains

There have been other discussions on time, like Type inference breakage in 1.80 has not been handled well Here I want to focus specifically on what, if anything, we can do so that old code can still build. We have package-specific hacks in cargo and rustc today. Is there room for us to extend one for this situation or add a new one?