From: sanvila@debian.org 
  
 Package: src:prs 
 Version: 0.5.2+dfsg-6 
 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/202510/ 
  
 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:prs, so that this is still 
 visible in the BTS web page for this package. 
  
 Thanks. 
  
 ---------------------------------------------------------------- 
 --------------- 
 [...] 
  debian/rules clean 
 dh clean --buildsystem=cargo --with shell_completions 
    debian/rules override_dh_auto_clean 
 make[1]: Entering directory '/<>' 
 dh_auto_clean 
 debian cargo wrapper: options = ['parallel=2'], profiles = [], parallel = 
 ['-j2'], lto = 
 debian cargo wrapper: rust_type = x86_64-unknown-linux-gnu, gnu_type = 
 x86_64-linux-gnu 
 debian cargo wrapper: running subprocess (['env', 'RUST_BACKTRACE=1', 
 '/usr/bin/cargo', 'clean', '--verbose', '--verbose'],) {'check': True} 
      Removed 0 files 
 rm -rf debian/cargo_registry 
 rm -f debian/cargo-checksum.json 
 make[1]: Leaving directory '/<>' 
    dh_autoreconf_clean -O--buildsystem=cargo 
    dh_clean -O--buildsystem=cargo 
  debian/rules binary 
 dh binary --buildsystem=cargo --with shell_completions 
    dh_update_autotools_config -O--buildsystem=cargo 
    dh_autoreconf -O--buildsystem=cargo 
    debian/rules override_dh_auto_configure 
 make[1]: Entering directory '/<>' 
 /usr/share/cargo/bin/cargo prepare-debian debian/cargo_registry 
 -link-from-system 
 debian cargo wrapper: options = ['parallel=2'], profiles = [], parallel = 
 ['-j2'], lto = 
 debian cargo wrapper: rust_type = x86_64-unknown-linux-gnu, gnu_type = 
 x86_64-linux-gnu 
 debian cargo wrapper: linking /usr/share/cargo/registry/* into / 
 >/debian/cargo_registry/ 
 rm -f Cargo.lock 
 touch debian/cargo-checksum.json 
 /usr/share/cargo/bin/cargo build --release -p prs-cli 
 debian cargo wrapper: options = ['parallel=2'], profiles = [], parallel = 
 ['-j2'], lto = 
 debian cargo wrapper: rust_type = x86_64-unknown-linux-gnu, gnu_type = 
 x86_64-linux-gnu 
 debian cargo wrapper: running subprocess (['env', 'RUST_BACKTRACE=1', 
 '/usr/bin/cargo', '-Zavoid-dev-deps', 'build', '--verbose', '--verbose', 
 '-j2', '--target', 'x86_64-unknown-linux-gnu', '--release', '-p', 'prs- 
 cli'],) 
 {} 
 error: failed to select a version for the requirement `nix = ".29"` 
 candidate versions found which didn't match: 0.30.1 
 location searched: directory source `/<>/debian/cargo_registry` 
 (which is replacing registry `crates-io`) 
 required by package `prs-lib v0.5.2 (/<>/lib)` 
     ... which satisfies path dependency `prs-lib` of package `prs-cli v0.5.2 
 (/<>/cli)` 
 perhaps a crate was updated and forgotten to be re-vendored? 
 make[1]: *** [debian/rules:26: override_dh_auto_configure] Error 101 
 make[1]: Leaving directory '/<>' 
 make: *** [debian/rules:15: binary] Error 2 
 dpkg-buildpackage: error: debian/rules binary subprocess returned exit 
 status 2 
 ---------------------------------------------------------------- 
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