[Pkg-rust-maintainers] Bug#1120503: Autopkgtests fail: data did not match any variant of untagged enum EitherInterval

[Andrey Rakhmatullin]

Package: librust-version-ranges-dev
Version: 0.1.1-1
Severity: serious

E.g. https://ci.debian.net/packages/r/rust-version-
ranges/testing/amd64/66135391/ and reproducible locally. On a first glance the
failing test is tests::serde_round_trip:

thread 'tests::serde_round_trip' panicked at src/lib.rs:1211:43:
called `Result::unwrap()` on an `Err` value: Error { code: Message("data did
not match any variant of untagged enum EitherInterval"), position: Position {
line: 0, col: 0 } }
stack backtrace:
   0: __rustc::rust_begin_unwind
             at /usr/src/rustc-1.90.0/library/std/src/panicking.rs:697:5
   1: core::panicking::panic_fmt
             at /usr/src/rustc-1.90.0/library/core/src/panicking.rs:75:14
   2: core::result::unwrap_failed
             at /usr/src/rustc-1.90.0/library/core/src/result.rs:1765:5
   3: core::result::Result<T,E>::unwrap
             at /usr/src/rustc-1.90.0/library/core/src/result.rs:1167:23
   4: version_ranges::tests::serde_round_trip::{{closure}}
             at ./src/lib.rs:1211:43
   5: core::ops::function::impls::<impl core::ops::function::Fn<A> for
&F>::call
             at /usr/src/rustc-1.90.0/library/core/src/ops/function.rs:266:22
   6: proptest::test_runner::runner::call_test::{{closure}}::{{closure}}
             at
/usr/share/cargo/registry/proptest-1.6.0/src/test_runner/runner.rs:258:56
   7: <core::panic::unwind_safe::AssertUnwindSafe<F> as
core::ops::function::FnOnce<()>>::call_once
             at
/usr/src/rustc-1.90.0/library/core/src/panic/unwind_safe.rs:272:9
   8: std::panicking::catch_unwind::do_call
             at /usr/src/rustc-1.90.0/library/std/src/panicking.rs:589:40
   9: __rust_try
  10: std::panicking::catch_unwind
             at /usr/src/rustc-1.90.0/library/std/src/panicking.rs:552:19
  11: std::panic::catch_unwind
             at /usr/src/rustc-1.90.0/library/std/src/panic.rs:359:14
  12: proptest::test_runner::runner::call_test::{{closure}}
             at
/usr/share/cargo/registry/proptest-1.6.0/src/test_runner/runner.rs:258:16
  13: proptest::test_runner::scoped_panic_hook::internal::with_hook
             at
/usr/share/cargo/registry/proptest-1.6.0/src/test_runner/scoped_panic_hook.rs:130:9
  14: proptest::test_runner::runner::call_test
             at
/usr/share/cargo/registry/proptest-1.6.0/src/test_runner/runner.rs:256:9
  15: proptest::test_runner::runner::TestRunner::run_one_with_replay
             at
/usr/share/cargo/registry/proptest-1.6.0/src/test_runner/runner.rs:728:22
  16: proptest::test_runner::runner::TestRunner::gen_and_run_case
             at
/usr/share/cargo/registry/proptest-1.6.0/src/test_runner/runner.rs:670:28
  17: proptest::test_runner::runner::TestRunner::run_in_process_with_replay
             at
/usr/share/cargo/registry/proptest-1.6.0/src/test_runner/runner.rs:619:31
  18: proptest::test_runner::runner::TestRunner::run_in_process
             at
/usr/share/cargo/registry/proptest-1.6.0/src/test_runner/runner.rs:574:14
  19: proptest::test_runner::runner::TestRunner::run
             at
/usr/share/cargo/registry/proptest-1.6.0/src/test_runner/runner.rs:417:18
  20: version_ranges::tests::serde_round_trip
             at /usr/share/cargo/registry/proptest-1.6.0/src/sugar.rs:163:17
  21: version_ranges::tests::serde_round_trip::{{closure}}
             at /usr/share/cargo/registry/proptest-1.6.0/src/sugar.rs:159:28
  22: core::ops::function::FnOnce::call_once
             at /usr/src/rustc-1.90.0/library/core/src/ops/function.rs:253:5
  23: core::ops::function::FnOnce::call_once
             at /usr/src/rustc-1.90.0/library/core/src/ops/function.rs:253:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose
backtrace.


-- System Information:
Debian Release: forky/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (101, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.16.8+deb14-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages librust-version-ranges-dev depends on:
pn  librust-proptest-1+default-dev  <none>
pn  librust-serde-1+default-dev     <none>
pn  librust-serde-1+derive-dev      <none>
pn  librust-smallvec-1+default-dev  <none>
pn  librust-smallvec-1+serde-dev    <none>
pn  librust-smallvec-1+union-dev    <none>

librust-version-ranges-dev recommends no packages.

librust-version-ranges-dev suggests no packages.