Bump tokio from 0.2.22 to 0.3.4

[dependabot-preview]

Bumps tokio from 0.2.22 to 0.3.4.

Release notes

Sourced from tokio's releases.

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).
• net: TcpSocket::local_addr() (#3093).
• net: add pid to UCred (#2633).

Tokio v0.3.2

Adds AsyncFd as a replacement for v0.2's PollEvented.

Fixed

• io: fix a potential deadlock when shutting down the I/O driver (#2903).
• sync: RwLockWriteGuard::downgrade() bug (#2957).

Added

• io: AsyncFd for receiving readiness events on raw FDs (#2903).
• net: poll_* function on UdpSocket (#2981).
• net: UdpSocket::take_error() (#3051).
• sync: oneshot::Sender::poll_closed() (#3032).

Tokio v0.3.1

This release fixes a use-after-free in the IO driver. Additionally, the read_buf and write_buf methods have been added back to the IO traits, as the bytes crate is now on track to reach version 1.0 together with Tokio.

Fixed

• net: fix use-after-free (#3019).

Commits

• 479c545 chore: prepare v0.3.4 release (#3152)
• 34fcef2 io: add vectored writes to AsyncWrite (#3149)
• 7d11aa8 net: add SO_LINGER get/set to TcpStream (#3143)
• 0ea2307 net: add UdpSocket readiness and non-blocking ops (#3138)
• d0ebb41 sync: add Notify::notify_waiters (#3098)
• f5cb4c2 net: Add send/recv buf size methods to TcpSocket (#3145)
• 4e39c9b net: restore TcpStream::{poll_read_ready, poll_write_ready} (#2743)
• 97c2c42 chore: automate running benchmarks (#3140)
• 60366ca chore: update pin-project-lite to 0.2.0 (#3139)
• 850bfc9 net: add missing doc cfg on TcpSocket (#3137)
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #49.