Auto merge of #276 - rust-lang:dependabot/cargo/anyhow-1.0.56, r=JohnTitor

Bump anyhow from 1.0.55 to 1.0.56

Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.55 to 1.0.56.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/dtolnay/anyhow/releases">anyhow's releases</a>.</em></p>
<blockquote>
<h2>1.0.56</h2>
<ul>
<li>Add <code>must_use</code> warning when an Error created by <code>anyhow!</code> is not used, perhaps because the programmer meant to write <code>bail!</code> instead (<a href="https://github-redirect.dependabot.com/dtolnay/anyhow/issues/229">#229</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/dtolnay/anyhow/commit/933df8845ae3ec962404db29a24b863ad5505b3b"><code>933df88</code></a> Release 1.0.56</li>
<li><a href="https://github.com/dtolnay/anyhow/commit/c8a3e4221cdf0fb93ab1d62bbfbdadc9ca9b6894"><code>c8a3e42</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/dtolnay/anyhow/issues/229">#229</a> from dtolnay/must_use</li>
<li><a href="https://github.com/dtolnay/anyhow/commit/cf5d619822645a4e1e8b40bccf4b13368f5eab66"><code>cf5d619</code></a> Update must-use test stderr</li>
<li><a href="https://github.com/dtolnay/anyhow/commit/573689b5f4c66b7b3972e6501b29cf6099afc885"><code>573689b</code></a> Remove must_use call from ensure! and bail! expansions</li>
<li><a href="https://github.com/dtolnay/anyhow/commit/ffa919c8aa0d563cedd975d95f0ed4a697bd6e8e"><code>ffa919c</code></a> Add must_use to value created by anyhow! macro</li>
<li><a href="https://github.com/dtolnay/anyhow/commit/1af20cc4409a6eae6f07d2d29f8c802f81684752"><code>1af20cc</code></a> Add must_use to Error constructors</li>
<li><a href="https://github.com/dtolnay/anyhow/commit/06826d1d79d9eaef36bb84baec23f6d23329fb8b"><code>06826d1</code></a> Add ui test for writing anyhow instead of bail</li>
<li>See full diff in <a href="https://github.com/dtolnay/anyhow/compare/1.0.55...1.0.56">compare view</a></li>
</ul>
</details>
<br />

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Author: bors

Cargo.lock

@@ -16,7 +16,7 @@ cargo = "0.60"
 crates-io = "0.33" # Keep in sync with version pulled by Cargo
 curl = "0.4.42"
 env_logger = "0.9"
-anyhow = "1.0.55"
+anyhow = "1.0.56"
 log = "0.4"
 semver = "1.0" # Keep in sync with version pulled by Cargo
 serde = { version = "1.0.136", features = ["derive"] }