Update to fixedbitset 0.5.0

[james7132]

Finally got around to fixing the issues with fixedbitset. This PR updates fixedbitset to 0.5.0.

[bluss]

nice. breaking by being a public dependency so care needed, needs version bump in petgraph too, I think?

[james7132]

If that's the case, should I remove those reexports? There may be more breaking changes in the near future with the SIMD acceleration work that has yet to land.

[bluss]

Not a reexport but a trait impl, I don't see how it can be removed right now.

Maybe https://docs.rs/petgraph/0.6.4/petgraph/visit/trait.Visitable.html with the associated type that links Graph to Graph::Map == FixedBitSet is the more clear example. I.e. that means FixedBitSet is in Graph's (an others) public API.

[james7132]

Note the SIMD changes made it in without another minor version bump. This should be the only breaking change.

[bluss]

Here is info, just for clarification:

• Fixedbitset is a public dependency
  • meaning: it's in the public api of petgraph
• 0.4.* to 0.5.* is not a default automatic upgrade in cargo

Those facts are enough to say this PR is a breaking change in petgraph, the contents of the library or the change in it doesn't matter.

[james7132]

Right I was just mentioning that this is likely to be the only breaking change from updating FixedBitset, as the major changes have landed without needing to bump the minor version further.

[JMS55]

Any update on this?