[INFO] cloning repository https://github.com/Dizans/leetcode_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dizans/leetcode_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDizans%2Fleetcode_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDizans%2Fleetcode_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce3f25dd20516c14995adb879e94732b20d8245e
[INFO] testing Dizans/leetcode_in_rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDizans%2Fleetcode_in_rust" "/workspace/builds/worker-51/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-51/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dizans/leetcode_in_rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dizans/leetcode_in_rust
[INFO] finished tweaking git repo https://github.com/Dizans/leetcode_in_rust
[INFO] tweaked toml for git repo https://github.com/Dizans/leetcode_in_rust written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate git repo https://github.com/Dizans/leetcode_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3837496997fdfe56fd7b7c3c4af1b9a069b730dd6302df52eb3294703e571a29
[INFO] running `Command { std: "docker" "start" "-a" "3837496997fdfe56fd7b7c3c4af1b9a069b730dd6302df52eb3294703e571a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3837496997fdfe56fd7b7c3c4af1b9a069b730dd6302df52eb3294703e571a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3837496997fdfe56fd7b7c3c4af1b9a069b730dd6302df52eb3294703e571a29", kill_on_drop: false }`
[INFO] [stdout] 3837496997fdfe56fd7b7c3c4af1b9a069b730dd6302df52eb3294703e571a29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a684d2274f14a0195fc1ac1126029716e3aae6fa939095cb703701af6e9c650
[INFO] running `Command { std: "docker" "start" "-a" "4a684d2274f14a0195fc1ac1126029716e3aae6fa939095cb703701af6e9c650", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "4a684d2274f14a0195fc1ac1126029716e3aae6fa939095cb703701af6e9c650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a684d2274f14a0195fc1ac1126029716e3aae6fa939095cb703701af6e9c650", kill_on_drop: false }`
[INFO] [stdout] 4a684d2274f14a0195fc1ac1126029716e3aae6fa939095cb703701af6e9c650
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c7184eb99fd6ba7b9960a651b8973bbb0253f74b6fa6c60be07c0a0511068f1
[INFO] running `Command { std: "docker" "start" "-a" "1c7184eb99fd6ba7b9960a651b8973bbb0253f74b6fa6c60be07c0a0511068f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "1c7184eb99fd6ba7b9960a651b8973bbb0253f74b6fa6c60be07c0a0511068f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c7184eb99fd6ba7b9960a651b8973bbb0253f74b6fa6c60be07c0a0511068f1", kill_on_drop: false }`
[INFO] [stdout] 1c7184eb99fd6ba7b9960a651b8973bbb0253f74b6fa6c60be07c0a0511068f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dbea667a98223ca2c5b206ed3001a760282805720ab95e86c94006b8a6af390a
[INFO] running `Command { std: "docker" "start" "-a" "dbea667a98223ca2c5b206ed3001a760282805720ab95e86c94006b8a6af390a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leetcode_in_rust-d3b24f99186992a0)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dbea667a98223ca2c5b206ed3001a760282805720ab95e86c94006b8a6af390a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbea667a98223ca2c5b206ed3001a760282805720ab95e86c94006b8a6af390a", kill_on_drop: false }`
[INFO] [stdout] dbea667a98223ca2c5b206ed3001a760282805720ab95e86c94006b8a6af390a