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Already borrowed panic (BorrowMutErr) during cargo update #13658
Description
Problem
When running cargo update, I encountered the following crash:
With the error being:
thread 'main' panicked at src/cargo/util/context/mod.rs:412:20:
already borrowed: BorrowMutError
Steps
- Clone this repo: https://github.com/TheLostLambda/smithereens
- Switch to the
cargo-bugbranch - Run
cargo update - Crash!
Possible Solution(s)
No response
Notes
Happy to help debug and gather more information if there are any issues reproducing!
Version
cargo 1.79.0-nightly (a510712d0 2024-03-25)
release: 1.79.0-nightly
commit-hash: a510712d05c6c98f987af24dd73cdfafee8922e6
commit-date: 2024-03-25
host: x86_64-unknown-linux-gnu
libgit2: 1.7.2 (sys:0.18.2 vendored)
libcurl: 8.6.0-DEV (sys:0.4.72+curl-8.6.0 vendored ssl:OpenSSL/1.1.1w)
ssl: OpenSSL 1.1.1w 11 Sep 2023
os: Arch Linux Rolling Release [64-bit]
Activity
TheLostLambda commentedon Mar 26, 2024
Also, I've just tested with the
betarelease of cargo, and it works fine! It would seem that the bug has been introduced / exposed between this version and now:TheLostLambda commentedon Mar 26, 2024
And I think that makes this the diff containing potential trouble-makers...
2fe739f...a510712
It's a big one, so perhaps someone with a bit more time / knowledge of the cargo internals will have to
git bisect!epage commentedon Mar 26, 2024
This was likely a duplicate of #13646 and fixed in #13647.
TheLostLambda commentedon Mar 26, 2024
@epage I think you're probably right — I'll try with the current git version and let you know!
If it is fixed, then I'll close this!
TheLostLambda commentedon Mar 26, 2024
Looks to be fixed! Thanks for the rapid response @epage !