… r=alexcrichton Update crossbeam-utils requirement from 0.6 to 0.7 Updates the requirements on [crossbeam-utils](https://github.com/crossbeam-rs/crossbeam) to permit the latest version. <details> <summary>Changelog</summary> *Sourced from [crossbeam-utils's changelog](https://github.com/crossbeam-rs/crossbeam/blob/master/CHANGELOG.md).* > # Version 0.7.0 > > - Remove `ArcCell`, `MsQueue`, and `TreiberStack`. > - Change the interface of `ShardedLock` to match `RwLock`. > - Add `SegQueue::len()`. > - Rename `SegQueue::try_pop()` to `SegQueue::pop()`. > - Change the return type of `SegQueue::pop()` to `Result`. > - Introduce `ArrayQueue`. > - Update dependencies. > > # Version 0.6.0 > > - Update dependencies. > > # Version 0.5.0 > > - Update `crossbeam-channel` to 0.3. > - Update `crossbeam-utils` to 0.6. > - Add `AtomicCell`, `SharedLock`, and `WaitGroup`. > > # Version 0.4.1 > > - Fix a double-free bug in `MsQueue` and `SegQueue`. > > # Version 0.4 > > - Switch to the new implementation of epoch-based reclamation in > [`crossbeam-epoch`](https://github.com/crossbeam-rs/crossbeam-epoch), fixing numerous bugs in the > old implementation. Its API is changed in a backward-incompatible way. > - Switch to the new implementation of `CachePadded` and scoped thread in > [`crossbeam-utils`](https://github.com/crossbeam-rs/crossbeam-utils). The scoped thread API is > changed in a backward-incompatible way. > - Switch to the new implementation of Chase-Lev deque in > [`crossbeam-deque`](https://github.com/crossbeam-rs/crossbeam-deque). Its API is changed in a > backward-incompatible way. > - Export channel implemented in > [`crossbeam-channel`](https://github.com/crossbeam-rs/crossbeam-channel). > - Remove `AtomicOption`. > - Implement `Default` and `From` traits. > > # Version 0.3 > > - Introduced `ScopedThreadBuilder` with the ability to name threads and set stack size > - `Worker` methods in the Chase-Lev deque don't require mutable access anymore > - Fixed a bug when unblocking `pop()` in `MsQueue` > - Implemented `Drop` for `MsQueue`, `SegQueue`, and `TreiberStack` > - Implemented `Default` for `TreiberStack` > - Added `is_empty` to `SegQueue` > - Renamed `mem::epoch` to `epoch` > - Other bug fixes ></tr></table> ... (truncated) </details> <details> <summary>Commits</summary> - [`28ad2b7`](crossbeam-rs/crossbeam@28ad2b7) Update versions in readmes - [`c98fea1`](crossbeam-rs/crossbeam@c98fea1) Merge [#444](https://github-redirect.dependabot.com/crossbeam-rs/crossbeam/issues/444) - [`d953f49`](crossbeam-rs/crossbeam@d953f49) Add compatibility section to readme - [`c76f145`](crossbeam-rs/crossbeam@c76f145) Prepare for the next release - [`99762ee`](crossbeam-rs/crossbeam@99762ee) Merge [#442](https://github-redirect.dependabot.com/crossbeam-rs/crossbeam/issues/442) - [`ebb6b5f`](crossbeam-rs/crossbeam@ebb6b5f) Do not perform superfluous bounds checks on drop - [`d2ab7a5`](crossbeam-rs/crossbeam@d2ab7a5) Update LICENSE-APACHE - [`f54db88`](crossbeam-rs/crossbeam@f54db88) Merge [#437](https://github-redirect.dependabot.com/crossbeam-rs/crossbeam/issues/437) - [`caa52c4`](crossbeam-rs/crossbeam@caa52c4) Merge [#436](https://github-redirect.dependabot.com/crossbeam-rs/crossbeam/issues/436) - [`af68803`](crossbeam-rs/crossbeam@af68803) Merge [#438](https://github-redirect.dependabot.com/crossbeam-rs/crossbeam/issues/438) - Additional commits viewable in [compare view](crossbeam-rs/crossbeam@crossbeam-utils-0.6.0...crossbeam-utils-0.7.0) </details> <br /> 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-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> 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 use these labels` will set the current labels as the default for future PRs for this repo and language - `@dependabot use these reviewers` will set the current reviewers as the default for future PRs for this repo and language - `@dependabot use these assignees` will set the current assignees as the default for future PRs for this repo and language - `@dependabot use this milestone` will set the current milestone as the default for future PRs for this repo and language - `@dependabot badge me` will comment on this PR with code to add a "Dependabot enabled" badge to your readme Additionally, you can set the following in your Dependabot [dashboard](https://app.dependabot.com): - Update frequency (including time of day and day of week) - Pull request limits (per update run and/or open at any time) - Automerge options (never/patch/minor, and dev/runtime dependencies) - Out-of-range updates (receive only lockfile updates, if desired) - Security updates (receive only security updates, if desired) </details>

cargo new should create stubs for existing project #437

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`cargo new` should create stubs for existing project #437