[INFO] fetching crate serde_v2 0.1.0...
[INFO] testing serde_v2-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate serde_v2 0.1.0 into /workspace/builds/worker-3-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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_v2 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79608149c0ad7d4c58d4f6bbe5402a04fcf2f1e6069bed3f1fa957a56250315b
[INFO] running `Command { std: "docker" "start" "-a" "79608149c0ad7d4c58d4f6bbe5402a04fcf2f1e6069bed3f1fa957a56250315b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79608149c0ad7d4c58d4f6bbe5402a04fcf2f1e6069bed3f1fa957a56250315b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79608149c0ad7d4c58d4f6bbe5402a04fcf2f1e6069bed3f1fa957a56250315b", kill_on_drop: false }`
[INFO] [stdout] 79608149c0ad7d4c58d4f6bbe5402a04fcf2f1e6069bed3f1fa957a56250315b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76a3e88340e3aaff2d46d0b17739cc5417acdf96e806bf4d68c7329fcdb3222c
[INFO] running `Command { std: "docker" "start" "-a" "76a3e88340e3aaff2d46d0b17739cc5417acdf96e806bf4d68c7329fcdb3222c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_v2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "76a3e88340e3aaff2d46d0b17739cc5417acdf96e806bf4d68c7329fcdb3222c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a3e88340e3aaff2d46d0b17739cc5417acdf96e806bf4d68c7329fcdb3222c", kill_on_drop: false }`
[INFO] [stdout] 76a3e88340e3aaff2d46d0b17739cc5417acdf96e806bf4d68c7329fcdb3222c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f89f2b76bb84a993ba4a6ab30dc10f60f90a46b1634d3050fb4e144e3d8d25a
[INFO] running `Command { std: "docker" "start" "-a" "5f89f2b76bb84a993ba4a6ab30dc10f60f90a46b1634d3050fb4e144e3d8d25a", 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 0.65s
[INFO] running `Command { std: "docker" "inspect" "5f89f2b76bb84a993ba4a6ab30dc10f60f90a46b1634d3050fb4e144e3d8d25a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f89f2b76bb84a993ba4a6ab30dc10f60f90a46b1634d3050fb4e144e3d8d25a", kill_on_drop: false }`
[INFO] [stdout] 5f89f2b76bb84a993ba4a6ab30dc10f60f90a46b1634d3050fb4e144e3d8d25a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f8ed006d3c7b401177723ac9878c6dc4e45157da54280372a3efa327b3609660
[INFO] running `Command { std: "docker" "start" "-a" "f8ed006d3c7b401177723ac9878c6dc4e45157da54280372a3efa327b3609660", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_v2-711e8dbbb66c8343)
[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_v2-711e8dbbb66c8343` (signal: 5, SIGTRAP: trace/breakpoint trap)
[INFO] running `Command { std: "docker" "inspect" "f8ed006d3c7b401177723ac9878c6dc4e45157da54280372a3efa327b3609660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8ed006d3c7b401177723ac9878c6dc4e45157da54280372a3efa327b3609660", kill_on_drop: false }`
[INFO] [stdout] f8ed006d3c7b401177723ac9878c6dc4e45157da54280372a3efa327b3609660