[INFO] cloning repository https://github.com/pymongo/rust_leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pymongo/rust_leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpymongo%2Frust_leetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpymongo%2Frust_leetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b70dd12d5ea80e0ec5ee151efb849f1e4fe7b984
[INFO] checking pymongo/rust_leetcode against nightly-2024-02-05 for check-cfg-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpymongo%2Frust_leetcode" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pymongo/rust_leetcode on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pymongo/rust_leetcode
[INFO] finished tweaking git repo https://github.com/pymongo/rust_leetcode
[INFO] tweaked toml for git repo https://github.com/pymongo/rust_leetcode written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c11ce2802160b1f33723070335c05cf5d6e91e52571d782c8f159ea43042858
[INFO] running `Command { std: "docker" "start" "-a" "8c11ce2802160b1f33723070335c05cf5d6e91e52571d782c8f159ea43042858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c11ce2802160b1f33723070335c05cf5d6e91e52571d782c8f159ea43042858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c11ce2802160b1f33723070335c05cf5d6e91e52571d782c8f159ea43042858", kill_on_drop: false }`
[INFO] [stdout] 8c11ce2802160b1f33723070335c05cf5d6e91e52571d782c8f159ea43042858
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24a934966d7db716bf22df33e6a0a2bdbc9ea5b03efd5db7d81f304173ed0fe6
[INFO] running `Command { std: "docker" "start" "-a" "24a934966d7db716bf22df33e6a0a2bdbc9ea5b03efd5db7d81f304173ed0fe6", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode-rust v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `deserialize_vec_to_binary_tree`, `print_binary_tree`, `serialize_binary_tree_to_vec`
[INFO] [stdout]   --> src/binary_tree/mod.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         deserialize_vec_to_binary_tree, print_binary_tree, serialize_binary_tree_to_vec,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `Command { std: "docker" "inspect" "24a934966d7db716bf22df33e6a0a2bdbc9ea5b03efd5db7d81f304173ed0fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a934966d7db716bf22df33e6a0a2bdbc9ea5b03efd5db7d81f304173ed0fe6", kill_on_drop: false }`
[INFO] [stdout] 24a934966d7db716bf22df33e6a0a2bdbc9ea5b03efd5db7d81f304173ed0fe6