0.49.0: Expected just reordering, got something else.

[bollwyvl]

Thanks for rattler-build!

Over on https://github.com/conda-forge/dagster-feedstock/pull/485, got the error below on this pipeline.

 │ Installing test environment

thread '<unnamed>' panicked at /home/conda/feedstock_root/build_artifacts/bld/rattler-build_rattler-build_1761689286/build_env/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/path_resolver-0.2.2/src/lib.rs:478:13:
Expected just reordering, got something else.
Old:
[
    PackageName(
        "_libgcc_mutex",
    ),

With remote_ci_setup/rattler-build set to !=0.49.0, I did not see the error.

more of the log

```bash 2025-10-30T21:28:17.5454178Z 2025-10-30T21:28:17.5458587Z ╭─ Running script test for recipe: dagster-airflow-1.12.0-pyhac95a24_0.conda 2025-10-30T21:28:17.5459186Z │ 2025-10-30T21:28:17.5459540Z │ Resolving test environment: 2025-10-30T21:28:17.5460054Z │ Platform: linux-64 [__unix=0=0, __linux=6.11.0=0, __glibc=2.34=0, __archspec=1=zen2] 2025-10-30T21:28:17.5460697Z │ Channels: 2025-10-30T21:28:17.5461130Z │ - file:///tmp/.tmpfAiWhr/ 2025-10-30T21:28:17.5462976Z │ - file:///home/conda/feedstock_root/build_artifacts/ 2025-10-30T21:28:17.5464709Z │ - conda-forge 2025-10-30T21:28:17.5470231Z │ Specs: 2025-10-30T21:28:17.5470793Z │ - pip 2025-10-30T21:28:17.5471251Z │ - airflow ' panicked at /home/conda/feedstock_root/build_artifacts/bld/rattler-build_rattler-build_1761689286/build_env/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/path_resolver-0.2.2/src/lib.rs:478:13: 2025-10-30T21:28:23.2849944Z Expected just reordering, got something else. 2025-10-30T21:28:23.2850272Z Old: 2025-10-30T21:28:23.2850479Z [ 2025-10-30T21:28:23.2851837Z PackageName( 2025-10-30T21:28:23.2852060Z "_libgcc_mutex", 2025-10-30T21:28:23.2852257Z ),

2025-10-30T21:28:23.3085227Z ] 2025-10-30T21:28:23.3085371Z 2025-10-30T21:28:23.3085680Z note: run with RUST_BACKTRACE=1 environment variable to display a backtrace 2025-10-30T21:28:23.3098124Z │ 2025-10-30T21:28:23.3098597Z ╰─────────────────── (took 6 seconds) 2025-10-30T21:28:23.3656304Z Error: × Thread panicked 2025-10-30T21:28:23.3658452Z

[wolfv]

Thank you! Will need some investigation!

[bollwyvl]

Still observing this 😿 ... luckily 0.48.0 keeps working

[wolfv]

Thanks for the additional ping. I was somehow not realizing initially that this is a problem of our clobber registry. I have made the issue in rattler: https://github.com/conda/rattler/issues/1912 with some more debugging and a relatively small reproducer. I hope we can fix it soon!