Update hashbrown requirement from 0.8.0 to 0.9.1

[dependabot[bot]]

Updates the requirements on hashbrown to permit the latest version.

Changelog

Sourced from hashbrown's changelog.

[v0.9.1] - 2020-09-28

Added

• Added safe methods to RawTable (#202):
  • get: find and as_ref
  • get_mut: find and as_mut
  • insert_entry: insert and as_mut
  • remove_entry: find and remove
  • erase_entry: find and erase

Changed

• Removed from_key_hashed_nocheck's Q: Hash. (#200)
• Made RawTable::drain safe. (#201)

[v0.9.0] - 2020-09-03

Fixed

• drain_filter now removes and yields items that do match the predicate, rather than items that don't. This is a breaking change to match the behavior of the drain_filter methods in std. (#187)

Added

• Added replace_entry_with to OccupiedEntry, and and_replace_entry_with to Entry. (#190)
• Implemented FusedIterator and size_hint for DrainFilter. (#188)

Changed

• The minimum Rust version has been bumped to 1.36 (due to crossbeam dependency). (#193)
• Updated ahash dependency to 0.4. (#198)
• HashMap::with_hasher and HashSet::with_hasher are now const fn. (#195)
• Removed T: Hash + Eq and S: BuildHasher bounds on HashSet::new, with_capacity, with_hasher, and with_capacity_and_hasher. (#185)

[v0.8.2] - 2020-08-08

Changed

• Avoid closures to improve compile times. (#183)
• Do not iterate to drop if empty. (#182)

[v0.8.1] - 2020-07-16

Added

• Added erase and remove to RawTable. (#171)
• Added try_with_capacity to RawTable. (#174)
• Added methods that allow re-using a RawIter for RawDrain, RawIntoIter, and RawParIter. (#175)
• Added reflect_remove and reflect_insert to RawIter. (#175)
• Added a drain_filter function to HashSet. (#179)

Changed

• Deprecated RawTable::erase_no_drop in favor of erase and remove. (#176)

... (truncated)

Commits

• 34c1189 Version 0.9.1
• d2b5aec Merge pull request #202 from cuviper/safer-raw-access
• 298f675 Merge pull request #203 from mominul/patch-1
• 35f7b47 Add MSRV in the README.md
• d26b37a Auto merge of #201 - cuviper:safe-drain, r=Amanieu
• 20cdb93 Add more safe methods to RawTable
• a56db69 Adjust the safety comments on drain/into_iter_from
• e793bd2 Make RawTable::drain safe
• 0f38616 Auto merge of #200 - cuviper:from_key_hashed_nocheck, r=Amanieu
• fd27d5b Remove from_key_hashed_nocheck's Q: Hash
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[dependabot[bot]]

The following labels could not be found: A2-insubstantial, M5-dependencies.

[dependabot[bot]]

OK, I won't notify you again about this release, but will get in touch when a new version is available.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.