aws-sdk-cloudwatch: docs build is broken for 1.93

[jmayclin]

Describe the bug

When visiting the docs.rs page for the cloudwatch sdk, there is a warning that the build is currently broken.

docs.rs failed to build aws-sdk-cloudwatch-1.93.0
Please check the build logs for more information.
See Builds for ideas on how to fix a failed build, or Metadata for how to configure docs.rs builds.
If you believe this is docs.rs' fault, open an issue.

The failed build is here

[INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op
[INFO] [stderr]  Documenting aws-sdk-cloudwatch v1.93.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]   --> src/lib.rs:21:29
[INFO] [stderr]    |
[INFO] [stderr] 21 | #![cfg_attr(docsrs, feature(doc_auto_cfg))]
[INFO] [stderr]    |                             ^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]    |
[INFO] [stderr]    = note: removed in CURRENT_RUSTC_VERSION; see <https://github.com/rust-lang/rust/pull/138907> for more information
[INFO] [stderr]    = note: merged into `doc_cfg`
[INFO] [stderr] 
[INFO] [stderr] error: Compilation failed, aborting rustdoc

Regression Issue

• Select this option if this issue appears to be a regression.

Expected Behavior

the docs are built

Current Behavior

the docs are not built

Reproduction Steps

visit the website

Possible Solution

No response

Additional Information/Context

No response

Version

1.93

Environment details (OS name and version, etc.)

uh, firefox?

Logs

No response

[aajtodd]

Thanks for the issue. We are aware and working on a fix.

smithy-lang/smithy-rs#4331

[ysaito1001]

We are working on deploying the fix so the docs of the crates will be available, starting from tomorrow's release (release-2025-10-07).

For the crates whose docs build were broken, unfortunately we cannot re-publish the same versions of the crates to crates.io. As a workaround, you should be able to vendor a crate, update doc_auto_cfg -> doc_cfg, and run cargo doc to generate docs for viewing it locally.

[ysaito1001]

docs build have been restored since yesterday's release (e.g. cloudwatch of version 1.94 is available on docs.rs).

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