Auto merge of #7815 - rust-lang:dependabot/cargo/humantime-2.0.0, r=Eh2406

Update humantime requirement from 1.2.0 to 2.0.0

Updates the requirements on [humantime](https://github.com/tailhook/humantime) to permit the latest version.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/tailhook/humantime/commit/d478f8a7878edba8a609a287776e27fc16d7009b"><code>d478f8a</code></a> Version bumped to v2.0.0</li>
<li><a href="https://github.com/tailhook/humantime/commit/49f11fdc2a59746085d2457cb46bce204dec746a"><code>49f11fd</code></a> Another improvement of the error message</li>
<li><a href="https://github.com/tailhook/humantime/commit/8a13b047ca0dc731e0c515b1db544fe1fd75bd7d"><code>8a13b04</code></a> Nicer error message for plain numeric duration</li>
<li><a href="https://github.com/tailhook/humantime/commit/edfa493e8cb8217aa5a0cc638398f60d67648c93"><code>edfa493</code></a> vagga.yaml: upgrade rust to 1.31.0</li>
<li><a href="https://github.com/tailhook/humantime/commit/8b8d748566c85a73b2f940e755dc0160c93f465a"><code>8b8d748</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/tailhook/humantime/issues/13">#13</a> from gh0st42/master</li>
<li><a href="https://github.com/tailhook/humantime/commit/da7723529fa30222b73561fad0ed7ce47d9a15a4"><code>da77235</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/tailhook/humantime/issues/12">#12</a> from koushiro/works</li>
<li><a href="https://github.com/tailhook/humantime/commit/227d7e591dd76bbfbca6a236d2e8661ddfd16d63"><code>227d7e5</code></a> Made crate unsafe free and forbid unsafe</li>
<li><a href="https://github.com/tailhook/humantime/commit/b7da4ab6ad24f68660cf92ede8dc88d7400a39fa"><code>b7da4ab</code></a> Downgrade MSRV to 1.31</li>
<li><a href="https://github.com/tailhook/humantime/commit/4a406825951039c6c3414b76c855dc38384d874d"><code>4a40682</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/tailhook/humantime/issues/11">#11</a> from koushiro/apply-rustfmt-and-clippy</li>
<li><a href="https://github.com/tailhook/humantime/commit/f00dbbae37ac281c919fbf0d56caf5900f1e0085"><code>f00dbba</code></a> Apply suggestions</li>
<li>Additional commits viewable in <a href="https://github.com/tailhook/humantime/compare/v1.2.0...v2.0.0">compare view</a></li>
</ul>
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Author: bors

Cargo.toml

@@ -38,7 +38,7 @@ git2-curl = "0.12.0"
 glob = "0.3.0"
 hex = "0.4"
 home = "0.5"
-humantime = "1.2.0"
+humantime = "2.0.0"
 ignore = "0.4.7"
 lazy_static = "1.2.0"
 jobserver = "0.1.13"