Bumps [libc](https://github.com/rust-lang/libc) from 0.2.185 to 0.2.186.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/libc/releases">libc's
releases</a>.</em></p>
<blockquote>
<h2>0.2.186</h2>
<h3>Added</h3>
<ul>
<li>Apple: Add <code>KEVENT_FLAG_*</code> constants (<a
href="https://redirect.github.com/rust-lang/libc/pull/5070">#5070</a>)</li>
<li>Linux: Add <code>PR_SET_MEMORY_MERGE</code> and
<code>PR_GET_MEMORY_MERGE</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/5060">#5060</a>)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>CI: Migrate FreeBSD CI from Cirrus CI to GitHub Actions (<a
href="https://redirect.github.com/rust-lang/libc/pull/5058">#5058</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/libc/blob/0.2.186/CHANGELOG.md">libc's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/rust-lang/libc/compare/0.2.185...0.2.186">0.2.186</a>
- 2026-04-24</h2>
<h3>Added</h3>
<ul>
<li>Apple: Add <code>KEVENT_FLAG_*</code> constants (<a
href="https://redirect.github.com/rust-lang/libc/pull/5070">#5070</a>)</li>
<li>Linux: Add <code>PR_SET_MEMORY_MERGE</code> and
<code>PR_GET_MEMORY_MERGE</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/5060">#5060</a>)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>CI: Migrate FreeBSD CI from Cirrus CI to GitHub Actions (<a
href="https://redirect.github.com/rust-lang/libc/pull/5058">#5058</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="42620ffc41"><code>42620ff</code></a>
[0.2] libc: Release 0.2.186</li>
<li><a
href="9db2eaaaae"><code>9db2eaa</code></a>
apple: add KEVENT_FLAG_* constants</li>
<li><a
href="38409392ff"><code>3840939</code></a>
Add PR_SET_MEMORY_MERGE and PR_GET_MEMORY_MERGE for linux</li>
<li><a
href="f697deb944"><code>f697deb</code></a>
chore: migrate from Cirrus CI to GHA</li>
<li>See full diff in <a
href="https://github.com/rust-lang/libc/compare/0.2.185...0.2.186">compare
view</a></li>
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Bumps [libc](https://github.com/rust-lang/libc) from 0.2.184 to 0.2.185.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/libc/releases">libc's
releases</a>.</em></p>
<blockquote>
<h2>0.2.185</h2>
<h3>Added</h3>
<ul>
<li>EspIDF: Add <code>espidf_picolibc</code> cfg for picolibc
<code>O_*</code> flag values (<a
href="https://redirect.github.com/rust-lang/libc/pull/5035">#5035</a>)</li>
<li>Hexagon: add missing constants and fix types for linux-musl (<a
href="https://redirect.github.com/rust-lang/libc/pull/5042">#5042</a>)</li>
<li>Redox: Add semaphore functions (<a
href="https://redirect.github.com/rust-lang/libc/pull/5051">#5051</a>)</li>
<li>Windows: Add <code>sprintf</code>, <code>snprintf</code>, and the
<code>scanf</code> family (<a
href="https://redirect.github.com/rust-lang/libc/pull/5024">#5024</a>)</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Hexagon: Decouple <code>time64</code> types from musl symbol
redirects (<a
href="https://redirect.github.com/rust-lang/libc/pull/5040">#5040</a>)</li>
<li>Horizon: Change <code>POLL</code> constants from
<code>c_short</code> to <code>c_int</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/5045">#5045</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/libc/blob/0.2.185/CHANGELOG.md">libc's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/rust-lang/libc/compare/0.2.184...0.2.185">0.2.185</a>
- 2026-04-13</h2>
<h3>Added</h3>
<ul>
<li>EspIDF: Add <code>espidf_picolibc</code> cfg for picolibc
<code>O_*</code> flag values (<a
href="https://redirect.github.com/rust-lang/libc/pull/5035">#5035</a>)</li>
<li>Hexagon: add missing constants and fix types for linux-musl (<a
href="https://redirect.github.com/rust-lang/libc/pull/5042">#5042</a>)</li>
<li>Redox: Add semaphore functions (<a
href="https://redirect.github.com/rust-lang/libc/pull/5051">#5051</a>)</li>
<li>Windows: Add <code>sprintf</code>, <code>snprintf</code>, and the
<code>scanf</code> family (<a
href="https://redirect.github.com/rust-lang/libc/pull/5024">#5024</a>)</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Hexagon: Decouple <code>time64</code> types from musl symbol
redirects (<a
href="https://redirect.github.com/rust-lang/libc/pull/5040">#5040</a>)</li>
<li>Horizon: Change <code>POLL</code> constants from
<code>c_short</code> to <code>c_int</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/5045">#5045</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="71d5bfcc1b"><code>71d5bfc</code></a>
libc: Release 0.2.185</li>
<li><a
href="1027d1c23b"><code>1027d1c</code></a>
Revert "ci: Pin nightly to 2026-04-01"</li>
<li><a
href="0e9c6e53cc"><code>0e9c6e5</code></a>
redox: Add semaphore functions</li>
<li><a
href="24ef457ddd"><code>24ef457</code></a>
feat: add back support for gnu windows x86 in ci</li>
<li><a
href="aa75caf30c"><code>aa75caf</code></a>
horizon: Change POLL constants from c_short to c_int</li>
<li><a
href="b7eda5a40c"><code>b7eda5a</code></a>
hexagon: add missing constants and fix types for linux-musl</li>
<li><a
href="d4613f96a5"><code>d4613f9</code></a>
newlib/espidf: Add espidf_picolibc cfg for picolibc O_* flag values</li>
<li><a
href="c89fd76cc7"><code>c89fd76</code></a>
Fix typo in Padding comments</li>
<li><a
href="b3264b292a"><code>b3264b2</code></a>
hexagon: decouple time64 types from musl symbol redirects</li>
<li><a
href="db1ebee456"><code>db1ebee</code></a>
ci: Pin nightly to 2026-04-01</li>
<li>Additional commits viewable in <a
href="https://github.com/rust-lang/libc/compare/0.2.184...0.2.185">compare
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Bumps [libc](https://github.com/rust-lang/libc) from 0.2.181 to 0.2.182.
<details>
<summary>Release notes</summary>
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<blockquote>
<h2>0.2.182</h2>
<h3>Added</h3>
<ul>
<li>Android, Linux: Add <code>tgkill</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4970">#4970</a>)</li>
<li>Redox: Add <code>RENAME_NOREPLACE</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4968">#4968</a>)</li>
<li>Redox: Add <code>renameat2</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4968">#4968</a>)</li>
</ul>
</blockquote>
</details>
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<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/libc/blob/0.2.182/CHANGELOG.md">libc's
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<blockquote>
<h2><a
href="https://github.com/rust-lang/libc/compare/0.2.181...0.2.182">0.2.182</a>
- 2026-02-13</h2>
<h3>Added</h3>
<ul>
<li>Android, Linux: Add <code>tgkill</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4970">#4970</a>)</li>
<li>Redox: Add <code>RENAME_NOREPLACE</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4968">#4968</a>)</li>
<li>Redox: Add <code>renameat2</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4968">#4968</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="e879ee90b6"><code>e879ee9</code></a>
chore: Release libc 0.2.182</li>
<li><a
href="2efe72f4da"><code>2efe72f</code></a>
remove copyright year in LICENSE-MIT</li>
<li><a
href="634bc4e66e"><code>634bc4e</code></a>
ci: Update the list of tested and documented targets</li>
<li><a
href="d7aa109ab5"><code>d7aa109</code></a>
Revert "Disable hexagon-unknown-linux-musl testing for
now"</li>
<li><a
href="14e2f5641e"><code>14e2f56</code></a>
Revert "ci: Skip hexagon-unknown-linux-musl"</li>
<li><a
href="b7807c369b"><code>b7807c3</code></a>
Revert "aix: Temporarily skip checking powerpc64-ibm-aix
builds"</li>
<li><a
href="abe93a0bfe"><code>abe93a0</code></a>
feat(linux): add <code>tgkill</code> for Linux and Android</li>
<li><a
href="25f7dde943"><code>25f7dde</code></a>
feat(redox): add <code>RENAME_NOREPLACE</code></li>
<li><a
href="4b4ce4f220"><code>4b4ce4f</code></a>
feat(redox): add <code>renameat2</code></li>
<li><a
href="ab8c36c493"><code>ab8c36c</code></a>
build(deps): bump vmactions/solaris-vm from 1.2.8 to 1.3.0</li>
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Bumps [libc](https://github.com/rust-lang/libc) from 0.2.179 to 0.2.180.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
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releases</a>.</em></p>
<blockquote>
<h2>0.2.180</h2>
<h3>Added</h3>
<ul>
<li>QNX: Add missing BPF and ifreq structures (<a
href="https://redirect.github.com/rust-lang/libc/pull/4769">#4769</a>)</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Linux, L4Re: address soundness issues of <code>CMSG_NXTHDR</code>
(<a
href="https://redirect.github.com/rust-lang/libc/pull/4903">#4903</a>)</li>
<li>Linux-like: Handle zero-sized payload differences in
<code>CMSG_NXTHDR</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4903">#4903</a>)</li>
<li>Musl: Fix incorrect definitions of struct stat on some 32-bit
architectures (<a
href="https://redirect.github.com/rust-lang/libc/pull/4914">#4914</a>)</li>
<li>NetBSD: RISC-V 64: Correct <code>mcontext</code> type definitions
(<a
href="https://redirect.github.com/rust-lang/libc/pull/4886">#4886</a>)</li>
<li>uClibc: Re-enable <code>__SIZEOF_PTHREAD_COND_T</code> on non-L4Re
uclibc (<a
href="https://redirect.github.com/rust-lang/libc/pull/4915">#4915</a>)</li>
<li>uClibc: Restructure Linux <code>netlink</code> module to resolve
build errors (<a
href="https://redirect.github.com/rust-lang/libc/pull/4915">#4915</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/libc/blob/0.2.180/CHANGELOG.md">libc's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/rust-lang/libc/compare/0.2.179...0.2.180">0.2.180</a>
- 2026-01-08</h2>
<h3>Added</h3>
<ul>
<li>QNX: Add missing BPF and ifreq structures (<a
href="https://redirect.github.com/rust-lang/libc/pull/4769">#4769</a>)</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Linux, L4Re: address soundness issues of <code>CMSG_NXTHDR</code>
(<a
href="https://redirect.github.com/rust-lang/libc/pull/4903">#4903</a>)</li>
<li>Linux-like: Handle zero-sized payload differences in
<code>CMSG_NXTHDR</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4903">#4903</a>)</li>
<li>Musl: Fix incorrect definitions of struct stat on some 32-bit
architectures (<a
href="https://redirect.github.com/rust-lang/libc/pull/4914">#4914</a>)</li>
<li>NetBSD: RISC-V 64: Correct <code>mcontext</code> type definitions
(<a
href="https://redirect.github.com/rust-lang/libc/pull/4886">#4886</a>)</li>
<li>uClibc: Re-enable <code>__SIZEOF_PTHREAD_COND_T</code> on non-L4Re
uclibc (<a
href="https://redirect.github.com/rust-lang/libc/pull/4915">#4915</a>)</li>
<li>uClibc: Restructure Linux <code>netlink</code> module to resolve
build errors (<a
href="https://redirect.github.com/rust-lang/libc/pull/4915">#4915</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="4b38c69e31"><code>4b38c69</code></a>
chore: release libc 0.2.180</li>
<li><a
href="300e643884"><code>300e643</code></a>
qnx: add missing BPF and ifreq structures</li>
<li><a
href="12fd831dff"><code>12fd831</code></a>
ci: Add rtems to basic tier 3 checks</li>
<li><a
href="b062844024"><code>b062844</code></a>
Only test addresses of cmsghdrs that are multiples of the size of
cmsghdr.</li>
<li><a
href="676a4f8fd4"><code>676a4f8</code></a>
linux: Move <code>membarrier.h</code> constants to
<code>src/new</code></li>
<li><a
href="0803faeb89"><code>0803fae</code></a>
linux: Restructure <code>netlink</code> to <code>src/new</code></li>
<li><a
href="72f4c1a5db"><code>72f4c1a</code></a>
uclibc: Re-enable <code>__SIZEOF_PTHREAD_COND_T</code> on non-L4Re
uclibc</li>
<li><a
href="757e55a3f0"><code>757e55a</code></a>
netbsd/riscv64.rs: make changes so that this builds again.</li>
<li><a
href="042f118911"><code>042f118</code></a>
musl: Fix incorrect definitions of struct stat on some
architectures</li>
<li><a
href="03755c4f70"><code>03755c4</code></a>
linux, emscripten, android, l4re: handle zero-sized payload differences
in CM...</li>
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href="https://github.com/rust-lang/libc/compare/0.2.179...0.2.180">compare
view</a></li>
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Bumps [libc](https://github.com/rust-lang/libc) from 0.2.178 to 0.2.179.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/libc/releases">libc's
releases</a>.</em></p>
<blockquote>
<h2>0.2.179</h2>
<p>With this release, we now have <em>unstable</em> support for 64-bit
<code>time_t</code> on 32-bit
platforms with both Musl and Glibc. Testing is appreciated!</p>
<p>For now, these can be enabled by setting environment variables during
build:</p>
<pre lang="text"><code>RUST_LIBC_UNSTABLE_MUSL_V1_2_3=1
RUST_LIBC_UNSTABLE_GNU_TIME_BITS=64
</code></pre>
<p>Note that the exact configuration will change in the future. Setting
the
<code>MUSL_V1_2_3</code> variable also enables some newer API unrelated
to <code>time_t</code>.</p>
<h3>Added</h3>
<ul>
<li>L4Re: Add uclibc aarch64 support (<a
href="https://redirect.github.com/rust-lang/libc/pull/4479">#4479</a>)</li>
<li>Linux, Android: Add a generic definition for <code>XCASE</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4847">#4847</a>)</li>
<li>Linux-like: Add <code>NAME_MAX</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4888">#4888</a>)</li>
<li>Linux: Add <code>AT_EXECVE_CHECK</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4422">#4422</a>)</li>
<li>Linux: Add the <code>SUN_LEN</code> macro (<a
href="https://redirect.github.com/rust-lang/libc/pull/4269">#4269</a>)</li>
<li>Linux: add <code>getitimer</code> and <code>setitimer</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4890">#4890</a>)</li>
<li>Linux: add <code>pthread_tryjoin_n</code> and
<code>pthread_timedjoin_np</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4887">#4887</a>)</li>
<li>Musl: Add unstable support for 64-bit <code>time_t</code> on 32-bit
platforms (<a
href="https://redirect.github.com/rust-lang/libc/pull/4463">#4463</a>)</li>
<li>NetBSD, OpenBSD: Add interface <code>LINK_STATE_*</code> definitions
from <code>sys/net/if.h</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4751">#4751</a>)</li>
<li>QuRT: Add support for Qualcomm QuRT (<a
href="https://redirect.github.com/rust-lang/libc/pull/4845">#4845</a>)</li>
<li>Types: Add Padding<!-- raw HTML omitted -->::uninit() (<a
href="https://redirect.github.com/rust-lang/libc/pull/4862">#4862</a>)</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Glibc: Link old version of <code>cf{g,s}et{i,o}speed</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4882">#4882</a>)</li>
<li>L4Re: Fixes for <code>pthread</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4479">#4479</a>)</li>
<li>L4re: Fix a wide variety of incorrect definitions (<a
href="https://redirect.github.com/rust-lang/libc/pull/4479">#4479</a>)</li>
<li>Musl: Fix the value of <code>CPU_SETSIZE</code> on musl 1.2+ (<a
href="https://redirect.github.com/rust-lang/libc/pull/4865">#4865</a>)</li>
<li>Musl: RISC-V: fix public padding fields in <code>stat/stat64</code>
(<a
href="https://redirect.github.com/rust-lang/libc/pull/4463">#4463</a>)</li>
<li>Musl: s390x: Fix definition of
<code>SIGSTKSZ</code>/<code>MINSIGSTKSZ</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4884">#4884</a>)</li>
<li>NetBSD: Arm: Fix <code>PT_{GET,SET}FPREGS</code>,
<code>_REG_TIPDR</code>, and <code>_REG_{LR,SP}</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4899">#4899</a>)</li>
<li>NetBSD: Fix <code>if_msghdr</code> alignment (<a
href="https://redirect.github.com/rust-lang/libc/pull/4902">#4902</a>)</li>
<li>NetBSD: Fix <code>siginfo_t</code> layout on 32-bit platforms (<a
href="https://redirect.github.com/rust-lang/libc/pull/4904">#4904</a>)</li>
<li>NetBSD: change definition of <code>pthread_spin_t</code> to allow
arch redefinition. (<a
href="https://redirect.github.com/rust-lang/libc/pull/4899">#4899</a>)</li>
<li>Newlib: Fix ambiguous glob exports and other warnings for Vita and
3DS (<a
href="https://redirect.github.com/rust-lang/libc/pull/4875">#4875</a>)</li>
<li>QNX: Fix build error (<a
href="https://redirect.github.com/rust-lang/libc/pull/4879">#4879</a>)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>CI: Update CI images to FreeBSD 15.0-release (<a
href="https://redirect.github.com/rust-lang/libc/pull/4857">#4857</a>)</li>
<li>L4Re: Make <code>pthread</code> struct fields private (<a
href="https://redirect.github.com/rust-lang/libc/pull/4876">#4876</a>)</li>
<li>Linux, Fuchsia: Mark mq_attr padding area as such (<a
href="https://redirect.github.com/rust-lang/libc/pull/4858">#4858</a>)</li>
<li>Types: Wrap a number of private fields in the <code>Padding</code>
type (<a
href="https://redirect.github.com/rust-lang/libc/pull/4862">#4862</a>)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="4c61c9c78c"><code>4c61c9c</code></a>
chore: release libc 0.2.179</li>
<li><a
href="a4237c035f"><code>a4237c0</code></a>
adding pthread_tryjoin_n/pthread_timedjoin_np to Linux.</li>
<li><a
href="d4c9bb834b"><code>d4c9bb8</code></a>
netbsd/arm.rs: make typo corrections which make the libc-test pass.</li>
<li><a
href="c2b4b3debf"><code>c2b4b3d</code></a>
netbsd/mod.rs: change definition of pthread_spin_t to allow arch
redefinition.</li>
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href="bd4a7c5b8d"><code>bd4a7c5</code></a>
links old version of cf{g,s}et{i,o}speed for glibc</li>
<li><a
href="80a05fdc11"><code>80a05fd</code></a>
netbsd/mod.rs: fix so that self-tests pass on both ilp32 and lp64.</li>
<li><a
href="3918b91159"><code>3918b91</code></a>
src/new/netbsd/net/if_.rs: make if_msghdr self-tests succeed on ilp32
hosts:</li>
<li><a
href="85aa379328"><code>85aa379</code></a>
build(deps): bump vmactions/solaris-vm from 1.1.8 to 1.2.3</li>
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qurt: Add support for Qualcomm QuRT</li>
<li><a
href="184a5584ea"><code>184a558</code></a>
Fix QNX build error</li>
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<h3>Fixed</h3>
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Revert canonicalizing the build directory and make the path absolute
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