In today's cargo team meeting, we discussed the Pre-RFC for MSRV-aware
resolver.
In that discussion, the question of recommending a policy came up.
While we didn't feel the ecosystem has coalesced enough to set one (and
we hope MSRV-aware resolver will avoid the need),
it became clear that some we can provide some basic help to the user,
including
- Raising awareness of tools to find the actual MSRV
- The policy that they should verify it with examples on how to do so

While this recommends some specific third-party tools,
I'm not aware of other tools within this for us to worry about at this
time for us to create any guidelines on which we should include.