Auto merge of #27554 - servo:dependabot/cargo/hashbrown-0.8.2, r=jdm

Bump hashbrown from 0.8.1 to 0.8.2

Bumps [hashbrown](https://github.com/rust-lang/hashbrown) from 0.8.1 to 0.8.2.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/rust-lang/hashbrown/blob/master/CHANGELOG.md">hashbrown's changelog</a>.</em></p>
<blockquote>
<h2>[v0.8.2] - 2020-08-08</h2>
<h3>Changed</h3>
<ul>
<li>Avoid closures to improve compile times. (<a href="https://github-redirect.dependabot.com/rust-lang/hashbrown/issues/183">#183</a>)</li>
<li>Do not iterate to drop if empty. (<a href="https://github-redirect.dependabot.com/rust-lang/hashbrown/issues/182">#182</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="18ea4fe99a"><code>18ea4fe</code></a> Version 0.8.2</li>
<li><a href="4c55714885"><code>4c55714</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/rust-lang/hashbrown/issues/184">#184</a> from Amanieu/rawiter_rules</li>
<li><a href="845b0f0a41"><code>845b0f0</code></a> Document RawIter guarantees</li>
<li><a href="09e43a8cf9"><code>09e43a8</code></a> Auto merge of <a href="https://github-redirect.dependabot.com/rust-lang/hashbrown/issues/183">#183</a> - nnethercote:avoid-closures, r=Amanieu</li>
<li><a href="e47bec1556"><code>e47bec1</code></a> Avoid closures to improve compile times.</li>
<li><a href="7593ec95d0"><code>7593ec9</code></a> Auto merge of <a href="https://github-redirect.dependabot.com/rust-lang/hashbrown/issues/182">#182</a> - jonhoo:fast-drop-empty, r=Amanieu</li>
<li><a href="284960cd74"><code>284960c</code></a> Do not iterate to drop if empty</li>
<li><a href="853d88d039"><code>853d88d</code></a> Auto merge of <a href="https://github-redirect.dependabot.com/rust-lang/hashbrown/issues/181">#181</a> - cbarrick:iter-probe, r=Amanieu</li>
<li><a href="28fab730dd"><code>28fab73</code></a> Fix a rustfmt error</li>
<li><a href="1434cf3319"><code>1434cf3</code></a> Refactor probing logic into an external iterator</li>
<li>See full diff in <a href="https://github.com/rust-lang/hashbrown/compare/v0.8.1...v0.8.2">compare view</a></li>
</ul>
</details>
<br />

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Cargo.lock

@@ -2507,9 +2507,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34f595585f103464d8d2f6e9864682d74c1601fed5e07d62b1c9058dba8246fb"
+checksum = "e91b62f79061a0bc2e046024cb7ba44b08419ed238ecbd9adbd787434b9e8c25"
 dependencies = [
  "autocfg",
 ]