[INFO] fetching crate serde_v2 0.1.0...
[INFO] testing serde_v2-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate serde_v2 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate serde_v2 0.1.0
[INFO] finished tweaking crates.io crate serde_v2 0.1.0
[INFO] tweaked toml for crates.io crate serde_v2 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_v2 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa6dc3429d20f7bb7ab87a052412879d681f2e6bd4167ceab606d595cbed4771
[INFO] running `Command { std: "docker" "start" "-a" "fa6dc3429d20f7bb7ab87a052412879d681f2e6bd4167ceab606d595cbed4771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa6dc3429d20f7bb7ab87a052412879d681f2e6bd4167ceab606d595cbed4771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa6dc3429d20f7bb7ab87a052412879d681f2e6bd4167ceab606d595cbed4771", kill_on_drop: false }`
[INFO] [stdout] fa6dc3429d20f7bb7ab87a052412879d681f2e6bd4167ceab606d595cbed4771
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee9555da84eb2927c09cb5e958478317f5a09cc261206d0955da9d7c0fa6a4dc
[INFO] running `Command { std: "docker" "start" "-a" "ee9555da84eb2927c09cb5e958478317f5a09cc261206d0955da9d7c0fa6a4dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_v2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "ee9555da84eb2927c09cb5e958478317f5a09cc261206d0955da9d7c0fa6a4dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee9555da84eb2927c09cb5e958478317f5a09cc261206d0955da9d7c0fa6a4dc", kill_on_drop: false }`
[INFO] [stdout] ee9555da84eb2927c09cb5e958478317f5a09cc261206d0955da9d7c0fa6a4dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f5f23ecf008be08b93251daa1f7aaffaeeaf8d093645a7848304e028bbbdd7a
[INFO] running `Command { std: "docker" "start" "-a" "4f5f23ecf008be08b93251daa1f7aaffaeeaf8d093645a7848304e028bbbdd7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_v2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "4f5f23ecf008be08b93251daa1f7aaffaeeaf8d093645a7848304e028bbbdd7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f5f23ecf008be08b93251daa1f7aaffaeeaf8d093645a7848304e028bbbdd7a", kill_on_drop: false }`
[INFO] [stdout] 4f5f23ecf008be08b93251daa1f7aaffaeeaf8d093645a7848304e028bbbdd7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 235d43cd7a336a16b56a87c4b5c3cbadb203520c9998b3727847137cacfde9c9
[INFO] running `Command { std: "docker" "start" "-a" "235d43cd7a336a16b56a87c4b5c3cbadb203520c9998b3727847137cacfde9c9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_v2-77ee363c03a1088b)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/serde_v2-77ee363c03a1088b` (signal: 5, SIGTRAP: trace/breakpoint trap)
[INFO] running `Command { std: "docker" "inspect" "235d43cd7a336a16b56a87c4b5c3cbadb203520c9998b3727847137cacfde9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "235d43cd7a336a16b56a87c4b5c3cbadb203520c9998b3727847137cacfde9c9", kill_on_drop: false }`
[INFO] [stdout] 235d43cd7a336a16b56a87c4b5c3cbadb203520c9998b3727847137cacfde9c9