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 for submit@bugs.debian.org; Tue, 09 Jun 2026 09:48:05 +0000
From: Santiago Vila &lt;sanvila@debian.org&gt;
To: Debian BTS &lt;submit@bugs.debian.org&gt;
Subject: rust-swc-core: FTBFS: error: failed to select a version for the
 requirement `vergen = &quot;^8.3.2&quot;`
X-Debbugs-Cc: sanvila@debian.org
Message-Id: &lt;E1wWt41-00ApDx-1R@paradis.debian.org&gt;
Date: Tue, 09 Jun 2026 09:48:05 +0000
Delivered-To: submit@bugs.debian.org

Package: src:rust-swc-core
Version: 65.0.4+ds-2
Severity: serious
Tags: ftbfs forky sid

Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202606/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:rust-swc-core, so that this is still
visible in the BTS web page for this package.

Thanks.

--------------------------------------------------------------------------------
[...]
 debian/rules clean
dh clean
   debian/rules override_dh_auto_clean
make[1]: Entering directory '/&lt;&lt;PKGBUILDDIR&gt;&gt;'
grep -q nightly crates/swc_core/Cargo.toml || dh_auto_clean --buildsystem=rust
	/usr/share/dh-rust/bin/cargo clean
debian cargo wrapper: options, profiles, parallel, lto: ['parallel=2'] [] ['-j2'] 0
debian cargo wrapper: rust_type, gnu_type: x86_64-unknown-linux-gnu, x86_64-linux-gnu
debian cargo wrapper: running subprocess (['env', 'RUST_BACKTRACE=1', '/usr/bin/cargo', 'clean', '--verbose', '--verbose'],) {'check': True}
     Removed 0 files
make[1]: Leaving directory '/&lt;&lt;PKGBUILDDIR&gt;&gt;'
   dh_clean -XCargo.toml.orig
 debian/rules binary
dh binary
   dh_update_autotools_config
   dh_autoreconf
   dh_auto_configure --buildsystem=rust
	/usr/share/dh-rust/bin/cargo prepare-debian debian/cargo_registry
debian cargo wrapper: options, profiles, parallel, lto: ['parallel=2'] [] ['-j2'] 0
debian cargo wrapper: rust_type, gnu_type: x86_64-unknown-linux-gnu, x86_64-linux-gnu
debian cargo wrapper: linking /usr/share/cargo/registry/* into /&lt;&lt;PKGBUILDDIR&gt;&gt;/debian/cargo_registry/
	cargo update
error: failed to select a version for the requirement `vergen = &quot;^8.3.2&quot;`
candidate versions found which didn't match: 9.1.0
location searched: directory source `/&lt;&lt;PKGBUILDDIR&gt;&gt;/debian/cargo_registry` (which is replacing registry `crates-io`)
required by package `swc_core v65.0.4 (/&lt;&lt;PKGBUILDDIR&gt;&gt;/crates/swc_core)`
perhaps a crate was updated and forgotten to be re-vendored?
dh_auto_configure: error: cargo update returned exit code 101
make: *** [debian/rules:20: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
--------------------------------------------------------------------------------
]