I am looking into upgrading the packages directly related to rustls,
and noticed that among the very few packages build-dependin directly on
rustls-webpki is async-tls which has this open bug which indicates that
it might be a package worth avoiding:
https://github.com/async-rs/async-tls/issues/60

async-tls in turn has only one reverse dependency - rust-opendal.

Please have opendal use futures-rustls instead of async-tls.

One apprach is to upgrade to opendal v0.53.0 or newer. Another
potentially less involved approach might be to cherry-pick this:
https://github.com/apache/opendal/pull/5716/commits/9800731

 - Jonas
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We believe that the bug you reported is fixed in the latest version of
rust-opendal, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1110553@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Peter Michael Green <plugwash@debian.org> (supplier of updated rust-opendal package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 11 Aug 2025 01:08:54 +0000
Source: rust-opendal
Architecture: source
Version: 0.54.0-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Rust Maintainers <pkg-rust-maintainers@alioth-lists.debian.net>
Changed-By: Peter Michael Green <plugwash@debian.org>
Closes: 1110553
Changes:
 rust-opendal (0.54.0-1) unstable; urgency=medium
 .
   * Team upload.
   * Package opendal 0.54.0 from crates.io using debcargo 2.7.8
     + New upstream switches from async-tls to futures-rustls (Closes: #1110553)
   * Drop patches related to dependencies that no-longer exist.
   * Update patches for new upstream.
   * Remove dev-dependency on divan
   * Revert upstream upgrade to quick-xml 0.37.
   * Patch out fastmetrics dependency and layers-fastmetrics feature
   * Explicitly specify ring backend for futures-rustls dependency
   * Allow rustls-native-certs 0.6
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