2026-06-24 10:46.40: New job: build topiary.0.6.0 (ed95e6fac78b)
2026-06-24 10:46.40: Waiting for resource in pool day11-builds
2026-06-24 10:57.59: Got resource from pool day11-builds
2026-06-24 10:57.59: [profile full] build topiary.0.6.0
2026-06-24 10:57.59: build topiary.0.6.0 (ed95e6fac78b)
=== DEPENDENCIES (1 transitive) ===
  conf-rust-2021.1                                   0a959f29c9b7
=== STDOUT ===
Processing: [default: loading data]
[topiary.0.6.0: dl]
[topiary.0.6.0: extract]
-> retrieved topiary.0.6.0  (https://opam.ocaml.org/cache)
[topiary: cargo build]
+ /usr/bin/cargo "build" "--release" "--package" "topiary-cli" (CWD=/home/opam/.opam/default/.opam-switch/build/topiary.0.6.0)
- error: failed to parse lock file at: /home/opam/.opam/default/.opam-switch/build/topiary.0.6.0/Cargo.lock
- 
- Caused by:
-   lock file version `4` was found, but this version of Cargo does not understand this lock file, perhaps Cargo needs to be updated?
[ERROR] The compilation of topiary.0.6.0 failed at "cargo build --release --package topiary-cli".
build failed... 

=== STDERR ===

2026-06-24 10:59.59: FAILED: build topiary.0.6.0
2026-06-24 10:59.59: Job failed: build failed: topiary.0.6.0