[INFO] cloning repository https://github.com/yoyos12138/data-structure
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yoyos12138/data-structure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoyos12138%2Fdata-structure", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoyos12138%2Fdata-structure'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3c31dd3441910316aeb3d1a5589653d9ee73566
[INFO] testing yoyos12138/data-structure against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoyos12138%2Fdata-structure" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yoyos12138/data-structure
[INFO] finished tweaking git repo https://github.com/yoyos12138/data-structure
[INFO] tweaked toml for git repo https://github.com/yoyos12138/data-structure written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yoyos12138/data-structure on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yoyos12138/data-structure already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93118ad9e0dcad856bfec53c4121f6e2cf96a01617f5822fdcb72c4ff00f2a33
[INFO] running `Command { std: "docker" "start" "-a" "93118ad9e0dcad856bfec53c4121f6e2cf96a01617f5822fdcb72c4ff00f2a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93118ad9e0dcad856bfec53c4121f6e2cf96a01617f5822fdcb72c4ff00f2a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93118ad9e0dcad856bfec53c4121f6e2cf96a01617f5822fdcb72c4ff00f2a33", kill_on_drop: false }`
[INFO] [stdout] 93118ad9e0dcad856bfec53c4121f6e2cf96a01617f5822fdcb72c4ff00f2a33
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c99b3f6a7583b9371ef9af0aaa23aca017bce88881727507a97825438866564
[INFO] running `Command { std: "docker" "start" "-a" "8c99b3f6a7583b9371ef9af0aaa23aca017bce88881727507a97825438866564", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling ttt v0.1.0 (/opt/rustwide/workdir/ttt)
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling singly_linked_list v0.1.0 (/opt/rustwide/workdir/singly_linked_list)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `Command { std: "docker" "inspect" "8c99b3f6a7583b9371ef9af0aaa23aca017bce88881727507a97825438866564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c99b3f6a7583b9371ef9af0aaa23aca017bce88881727507a97825438866564", kill_on_drop: false }`
[INFO] [stdout] 8c99b3f6a7583b9371ef9af0aaa23aca017bce88881727507a97825438866564
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6af432bbcea56bb8150471ed076a7f9a06756b70eb62bba055889bd370557d85
[INFO] running `Command { std: "docker" "start" "-a" "6af432bbcea56bb8150471ed076a7f9a06756b70eb62bba055889bd370557d85", kill_on_drop: false }`
[INFO] [stderr]    Compiling ttt v0.1.0 (/opt/rustwide/workdir/ttt)
[INFO] [stderr]    Compiling singly_linked_list v0.1.0 (/opt/rustwide/workdir/singly_linked_list)
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]   --> singly_linked_list/src/main.rs:75:16
[INFO] [stdout]    |
[INFO] [stdout] 75 |     use rand::{thread_rng, Rng};
[INFO] [stdout]    |                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "6af432bbcea56bb8150471ed076a7f9a06756b70eb62bba055889bd370557d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6af432bbcea56bb8150471ed076a7f9a06756b70eb62bba055889bd370557d85", kill_on_drop: false }`
[INFO] [stdout] 6af432bbcea56bb8150471ed076a7f9a06756b70eb62bba055889bd370557d85
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66843d0baabe50f3a86c1fc183936c8609a3f6d1149d3de4a3b4ec9f38acdea4
[INFO] running `Command { std: "docker" "start" "-a" "66843d0baabe50f3a86c1fc183936c8609a3f6d1149d3de4a3b4ec9f38acdea4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `thread_rng`
[INFO] [stdout] 
[INFO] [stderr]   --> singly_linked_list/src/main.rs:75:16
[INFO] [stdout] running 1 test
[INFO] [stderr]    |
[INFO] [stderr] 75 |     use rand::{thread_rng, Rng};
[INFO] [stderr]    |                ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `singly_linked_list` (bin "singly_linked_list" test) generated 1 warning (run `cargo fix --bin "singly_linked_list" -p singly_linked_list --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/singly_linked_list-1b5f8c7963254165)
[INFO] [stderr] error: test failed, to rerun pass `-p singly_linked_list --bin singly_linked_list`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/singly_linked_list-1b5f8c7963254165` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "66843d0baabe50f3a86c1fc183936c8609a3f6d1149d3de4a3b4ec9f38acdea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66843d0baabe50f3a86c1fc183936c8609a3f6d1149d3de4a3b4ec9f38acdea4", kill_on_drop: false }`
[INFO] [stdout] 66843d0baabe50f3a86c1fc183936c8609a3f6d1149d3de4a3b4ec9f38acdea4
