Auto merge of #28712 - servo:dependabot/cargo/futures-util-0.3.21, r=jdm

Bump futures-util from 0.3.8 to 0.3.21

Bumps [futures-util](https://github.com/rust-lang/futures-rs) from 0.3.8 to 0.3.21.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/rust-lang/futures-rs/releases">futures-util's releases</a>.</em></p>
<blockquote>
<h2>0.3.21</h2>
<ul>
<li>Fix potential data race in <code>FlattenUnordered</code> that introduced in 0.3.20 (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2566">#2566</a>)</li>
</ul>
<h2>0.3.20</h2>
<ul>
<li>Fix stacked borrows violations when <code>-Zmiri-tag-raw-pointers</code> is enabled. This raises MSRV of <code>futures-task</code> to 1.45. (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2548">#2548</a>, <a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2550">#2550</a>)</li>
<li>Change <code>FuturesUnordered</code> to respect yielding from future (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2551">#2551</a>)</li>
<li>Add <code>StreamExt::{flatten_unordered, flat_map_unordered}</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2083">#2083</a>)</li>
</ul>
<h2>0.3.19</h2>
<ul>
<li>Remove unstable <code>read-initializer</code> feature (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2534">#2534</a>)</li>
<li>Fix panic in <code>FuturesUnordered</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2535">#2535</a>)</li>
<li>Fix compatibility issue with <code>FuturesUnordered</code> and tokio's cooperative scheduling (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2527">#2527</a>)</li>
<li>Add <code>StreamExt::count</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2495">#2495</a>)</li>
</ul>
<h2>0.3.18</h2>
<ul>
<li>Fix unusable <code>Sink</code> implementation on <code>stream::Scan</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2499">#2499</a>)</li>
<li>Make <code>task::noop_waker_ref</code> available without <code>std</code> feature (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2505">#2505</a>)</li>
<li>Add async <code>LineWriter</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2477">#2477</a>)</li>
<li>Remove dependency on <code>proc-macro-hack</code>. This raises MSRV of utility crates to 1.45. (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2520">#2520</a>)</li>
</ul>
<h2>0.3.17</h2>
<ul>
<li>Use <code>FuturesOrdered</code> in <code>join_all</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2412">#2412</a>)</li>
<li>Add <code>{future, stream}::poll_immediate</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2452">#2452</a>)</li>
<li>Add <code>stream_select!</code> macro (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2262">#2262</a>)</li>
<li>Implement <code>Default</code> for <code>OptionFuture</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2471">#2471</a>)</li>
<li>Add <code>Peekable::{peek_mut, poll_peek_mut}</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2488">#2488</a>)</li>
<li>Add <code>BufReader::seek_relative</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2489">#2489</a>)</li>
</ul>
<h2>0.3.16</h2>
<ul>
<li>Add <code>TryStreamExt::try_chunks</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2438">#2438</a>)</li>
<li>Add <code>StreamExt::{all, any}</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2460">#2460</a>)</li>
<li>Add <code>stream::select_with_strategy</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2450">#2450</a>)</li>
<li>Update to new <code>io_slice_advance</code> interface (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2454">#2454</a>)</li>
</ul>
<h2>0.3.15</h2>
<ul>
<li>Use <code>#[proc_macro]</code> at Rust 1.45+ to fix an issue where proc macros don't work with rust-analyzer (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2407">#2407</a>)</li>
<li>Support targets that do not have atomic CAS on stable Rust (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2400">#2400</a>)</li>
<li>futures-test: Add async <code>#[test]</code> function attribute (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2409">#2409</a>)</li>
<li>Add <code>stream::abortable</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2410">#2410</a>)</li>
<li>Add <code>FuturesUnordered::clear</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2415">#2415</a>)</li>
<li>Implement <code>IntoIterator</code> for <code>FuturesUnordered</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2423">#2423</a>)</li>
<li>Implement <code>Send</code> and <code>Sync</code> for <code>FuturesUnordered</code> iterators (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2416">#2416</a>)</li>
<li>Make <code>FuturesUnordered::iter_pin_ref</code> public (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2423">#2423</a>)</li>
<li>Add <code>SelectAll::clear</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2430">#2430</a>)</li>
<li>Add <code>SelectAll::{iter, iter_mut}</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2428">#2428</a>)</li>
<li>Implement <code>IntoIterator</code> for <code>SelectAll</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2428">#2428</a>)</li>
<li>Implement <code>Clone</code> for <code>WeakShared</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2396">#2396</a>)</li>
</ul>
<h2>0.3.14</h2>
<ul>
<li>Add <code>future::SelectAll::into_inner</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2363">#2363</a>)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/rust-lang/futures-rs/blob/master/CHANGELOG.md">futures-util's changelog</a>.</em></p>
<blockquote>
<h1>0.3.21 - 2022-02-06</h1>
<ul>
<li>Fix potential data race in <code>FlattenUnordered</code> that introduced in 0.3.20 (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2566">#2566</a>)</li>
</ul>
<h1>0.3.20 - 2022-02-06</h1>
<p>NOTE: This release has been yanked due to a bug fixed in 0.3.21.</p>
<ul>
<li>Fix stacked borrows violations when <code>-Zmiri-tag-raw-pointers</code> is enabled. This raises MSRV of <code>futures-task</code> to 1.45. (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2548">#2548</a>, <a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2550">#2550</a>)</li>
<li>Change <code>FuturesUnordered</code> to respect yielding from future (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2551">#2551</a>)</li>
<li>Add <code>StreamExt::{flatten_unordered, flat_map_unordered}</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2083">#2083</a>)</li>
</ul>
<h1>0.3.19 - 2021-12-18</h1>
<ul>
<li>Remove unstable <code>read-initializer</code> feature (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2534">#2534</a>)</li>
<li>Fix panic in <code>FuturesUnordered</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2535">#2535</a>)</li>
<li>Fix compatibility issue with <code>FuturesUnordered</code> and tokio's cooperative scheduling (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2527">#2527</a>)</li>
<li>Add <code>StreamExt::count</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2495">#2495</a>)</li>
</ul>
<h1>0.3.18 - 2021-11-23</h1>
<p>NOTE: This release has been yanked. See <a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2529">#2529</a> for details.</p>
<ul>
<li>Fix unusable <code>Sink</code> implementation on <code>stream::Scan</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2499">#2499</a>)</li>
<li>Make <code>task::noop_waker_ref</code> available without <code>std</code> feature (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2505">#2505</a>)</li>
<li>Add async <code>LineWriter</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2477">#2477</a>)</li>
<li>Remove dependency on <code>proc-macro-hack</code>. This raises MSRV of utility crates to 1.45. (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2520">#2520</a>)</li>
</ul>
<h1>0.3.17 - 2021-08-30</h1>
<ul>
<li>Use <code>FuturesOrdered</code> in <code>join_all</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2412">#2412</a>)</li>
<li>Add <code>{future, stream}::poll_immediate</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2452">#2452</a>)</li>
<li>Add <code>stream_select!</code> macro (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2262">#2262</a>)</li>
<li>Implement <code>Default</code> for <code>OptionFuture</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2471">#2471</a>)</li>
<li>Add <code>Peekable::{peek_mut, poll_peek_mut}</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2488">#2488</a>)</li>
<li>Add <code>BufReader::seek_relative</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2489">#2489</a>)</li>
</ul>
<h1>0.3.16 - 2021-07-23</h1>
<ul>
<li>Add <code>TryStreamExt::try_chunks</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2438">#2438</a>)</li>
<li>Add <code>StreamExt::{all, any}</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2460">#2460</a>)</li>
<li>Add <code>stream::select_with_strategy</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2450">#2450</a>)</li>
<li>Update to new <code>io_slice_advance</code> interface (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2454">#2454</a>)</li>
</ul>
<h1>0.3.15 - 2021-05-11</h1>
<ul>
<li>Use <code>#[proc_macro]</code> at Rust 1.45+ to fix an issue where proc macros don't work with rust-analyzer (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2407">#2407</a>)</li>
<li>Support targets that do not have atomic CAS on stable Rust (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2400">#2400</a>)</li>
<li>futures-test: Add async <code>#[test]</code> function attribute (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2409">#2409</a>)</li>
<li>Add <code>stream::abortable</code> (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2410">#2410</a>)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="fc1e325021"><code>fc1e325</code></a> Release 0.3.21</li>
<li><a href="20279ebbfc"><code>20279eb</code></a> <code>FlattenUnordered</code>: improve wakers behavior (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2566">#2566</a>)</li>
<li><a href="75dca5ae7f"><code>75dca5a</code></a> Fix MSRV in futures-task readme</li>
<li><a href="55281c8c8d"><code>55281c8</code></a> Release 0.3.20</li>
<li><a href="591b982af8"><code>591b982</code></a> Redefine executor and compat modules in futures crate (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2564">#2564</a>)</li>
<li><a href="94b508bfcb"><code>94b508b</code></a> Basic <code>StreamExt::{flatten_unordered, flat_map_unordered}</code> impls (<a href="https://github-redirect.dependabot.com/rust-lang/futures-rs/issues/2083">#2083</a>)</li>
<li><a href="dca16fafa5"><code>dca16fa</code></a> Do not auto-create PR on fork</li>
<li><a href="a9795a9243"><code>a9795a9</code></a> Automatically creates PR when no_atomic_cas.rs needs to be updated</li>
<li><a href="4841888d68"><code>4841888</code></a> Update comments in build scripts</li>
<li><a href="85706b6d67"><code>85706b6</code></a> Clean up ci/no_atomic_cas.sh</li>
<li>Additional commits viewable in <a href="https://github.com/rust-lang/futures-rs/compare/0.3.8...0.3.21">compare view</a></li>
</ul>
</details>
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Cargo.lock

@@ -1848,9 +1848,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.13"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c2dd2df839b57db9ab69c2c9d8f3e8c81984781937fe2807dc6dcf3b2ad2939"
+checksum = "c3083ce4b914124575708913bca19bfe887522d6e2e6d0952943f5eac4a74010"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -1858,9 +1858,9 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.13"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15496a72fabf0e62bdc3df11a59a3787429221dd0710ba8ef163d6f7a9112c94"
+checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
 
 [[package]]
 name = "futures-executor"
@@ -1875,17 +1875,16 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.13"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d71c2c65c57704c32f5241c1223167c2c3294fd34ac020c807ddbe6db287ba59"
+checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.8"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77408a692f1f97bcc61dc001d752e00643408fbc922e4d634c655df50d595556"
+checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
 dependencies = [
- "proc-macro-hack",
  "proc-macro2",
  "quote",
  "syn",
@@ -1893,21 +1892,21 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.13"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85754d98985841b7d4f5e8e6fbfa4a4ac847916893ec511a2917ccd8525b8bb3"
+checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
 
 [[package]]
 name = "futures-task"
-version = "0.3.13"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa189ef211c15ee602667a6fcfe1c1fd9e07d42250d2156382820fba33c9df80"
+checksum = "57c66a976bf5909d801bbef33416c41372779507e7a6b3a5e25e4749c58f776a"
 
 [[package]]
 name = "futures-util"
-version = "0.3.8"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d304cff4a7b99cfb7986f7d43fbe93d175e72e704a8860787cc95e9ffd85cbd2"
+checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
 dependencies = [
  "futures 0.1.31",
  "futures-channel",
@@ -1917,10 +1916,8 @@ dependencies = [
  "futures-sink",
  "futures-task",
  "memchr",
- "pin-project 1.0.2",
+ "pin-project-lite 0.2.8",
  "pin-utils",
- "proc-macro-hack",
- "proc-macro-nested",
  "slab",
 ]
 
@@ -4752,12 +4749,6 @@ version = "0.5.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 
-[[package]]
-name = "proc-macro-nested"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eba180dafb9038b050a4c280019bbedf9f2467b61e5d892dcad585bb57aadc5a"
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.24"