Bump tokio-util from 0.3.1 to 0.6.3

[dependabot]

Bumps tokio-util from 0.3.1 to 0.6.3.

Release notes

Sourced from tokio-util's releases.

Tokio v0.3.6

Released December 14, 2020

Fixed

• rt: fix deadlock in shutdown (#3228)
• rt: fix panic in task abort when off rt (#3159)
• sync: make add_permits panic with usize::MAX >> 3 permits (#3188)
• time: Fix race condition in timer drop (#3229)
• watch: fix spurious wakeup (#3244)

Added

• example: add back udp-codec example (#3205)
• net: add TcpStream::into_std (#3189)

Tokio v0.3.5

Fixed

• rt: fix shutdown_timeout(0) (#3196).
• time: fixed race condition with small sleeps (#3069).

Added

• io: AsyncFd::with_interest() (#3167).
• signal: CtrlC stream on windows (#3186).

Tokio v0.3.4

Fixed

• stream: StreamMap Default impl bound (#3093).
• io: AsyncFd::into_inner() should deregister the FD (#3104).

Changed

• meta: parking_lot feature enabled with full (#3119).

Added

• io: AsyncWrite vectored writes (#3149).
• net: TCP/UDP readiness and non-blocking ops (#3130, #2743, #3138).
• net: TCP socket option (linger, send/recv buf size) (#3145, #3143).
• net: PID field in UCred with solaris/illumos (#3085).
• rt: runtime::Handle allows spawning onto a runtime (#3079).
• sync: Notify::notify_waiters() (#3098).
• sync: acquire_many(), try_acquire_many() to Semaphore (#3067).

Tokio v0.3.3

Fixes a soundness hole by adding a missing Send bound to Runtime::spawn_blocking().

Fixed

• rt: include missing Send, fixing soundness hole (#3089).
• tracing: avoid huge trace span names (#3074).

Added

• net: TcpSocket::reuseport(), TcpSocket::set_reuseport() (#3083).
• net: TcpSocket::reuseaddr() (#3093).

... (truncated)

Commits

• 60d8884 chore: prepare tokio-util v0.6.3 (#3488)
• ee1f0c4 util: remove tokio-stream dependency from tokio-util (#3487)
• 06d6adf util: use ReusableBoxFuture for PollSemaphore (#3463)
• 891aba5 util: add ReusableBoxFuture utility (#3464)
• 10c3b2f Merge branch 'tokio-1.1.x'
• 6f98872 runtime: minimize the amount of duplicated code (#3416)
• 085f819 Merge branch 'tokio-1.0.x' into 'tokio-1.1.x'
• 5d0a81f io: fix memory leak during shutdown (#3477)
• 1f9765f process: add missing drop child stdin to wait() (#3421)
• 225e8ea sync: update RwLock doc to mention possibility of deadlock (#3389)
• Additional commits viewable in compare view

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[dependabot]

The following labels could not be found: cargo, dependencies.

[dependabot]

Superseded by #33.