Bump tokio from 0.1.22 to 0.2.8

[dependabot-preview]

Bumps tokio from 0.1.22 to 0.2.8.

Release notes

Sourced from tokio's releases.

Tokio v0.2.7

This release includes both bug fixes and incremental improvements across most of Tokio. The primary bug fixes are to Runtime configured with basic_scheduler and task::LocalSet.

Fixes

• potential deadlock when dropping basic_scheduler Runtime.
• calling spawn_blocking from within a spawn_blocking (#2006).
• storing a Runtime instance in a thread-local (#2011).
• miscellaneous documentation fixes.
• rt: fix Waker::will_wake to return true when tasks match (#2045).
• test-util: time::advance runs pending tasks before changing the time (#2059).

Added

• net::lookup_host maps a T: ToSocketAddrs to a stream of SocketAddrs (#1870).
• process::Child fields are made public to match std (#2014).
• impl Stream for sync::broadcast::Receiver (#2012).
• sync::RwLock provides an asynchonous read-write lock (#1699).
• runtime::Handle::current returns the handle for the current runtime (#2040).
• StreamExt::filter filters stream values according to a predicate (#2001).
• StreamExt::filter_map simultaneously filter and map stream values (#2001).
• StreamExt::try_next convenience for streams of Result<T, E> (#2005).
• StreamExt::take limits a stream to a specified number of values (#2025).
• StreamExt::take_while limits a stream based on a predicate (#2029).
• StreamExt::all tests if every element of the stream matches a predicate (#2035).
• StreamExt::any tests if any element of the stream matches a predicate (#2034).
• task::LocalSet.await runs spawned tasks until the set is idle (#1971).
• time::DelayQueue::len returns the number entries in the queue (#1755).
• expose runtime options from the #[tokio::main] and #[tokio::test] (#2022).

Tokio v0.2.6

This release fixes an API regression introduced as part of v0.2.5.

Fixes

• fs::File::seek API regression (#1991).

Tokio v0.2.5

Includes new APIs, utilities, and fixes. Some highlights:

tokio::sync::broadcast

A multi-producer, multi-consumer channel where each sent value is sent to all consumers (fan-out). The channel is bounded and when consumers lag, they will receive an error indicating they have lagged too far behind.

use tokio::sync::broadcast;
#[tokio::main]
async fn main() {
let (tx, mut rx1) = broadcast::channel(16);
let mut rx2 = tx.subscribe();
tokio::spawn(async move {

</tr></table> ... (truncated)

Commits

• b117fc1 Bump version to v0.1.13 (#771)
• 272e09d threadpool: remove smoke example (#764) (#770)
• 3235749 threadpool: refactor pool shutdown (#769)
• 9c03704 threadpool: rename inner to something more descriptive (#768)
• 3658e10 uds: implement UnixDatagramFramed (#453)
• ed3ece2 current-thread: fix shutdown on idle (#763)
• 9b1a45c tests: handle errors properly in examples (#748)
• 477fa55 ci: Don't deploy docs if $TARGET is set (#762)
• bb6cca8 tests: switch to Windows Server 2016 for AppVeyor builds. (#761)
• e166c4d Implement throttle combinator (#736)
• Additional commits viewable in compare view

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