[INFO] cloning repository https://github.com/howeih/Day-62-Linked-list-cycle-detection
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/howeih/Day-62-Linked-list-cycle-detection" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-62-Linked-list-cycle-detection", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-62-Linked-list-cycle-detection'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c24eed6f1d2d7c5d48fa0d8e8677e4dfb7a4ad64
[INFO] testing howeih/Day-62-Linked-list-cycle-detection against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-62-Linked-list-cycle-detection" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/howeih/Day-62-Linked-list-cycle-detection on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/howeih/Day-62-Linked-list-cycle-detection
[INFO] finished tweaking git repo https://github.com/howeih/Day-62-Linked-list-cycle-detection
[INFO] tweaked toml for git repo https://github.com/howeih/Day-62-Linked-list-cycle-detection written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/howeih/Day-62-Linked-list-cycle-detection already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d3f07b1d31ded8ee5f97ecc33b8b56f05277298bdbfed48b28b21a76a64622ba
[INFO] running `Command { std: "docker" "start" "-a" "d3f07b1d31ded8ee5f97ecc33b8b56f05277298bdbfed48b28b21a76a64622ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3f07b1d31ded8ee5f97ecc33b8b56f05277298bdbfed48b28b21a76a64622ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f07b1d31ded8ee5f97ecc33b8b56f05277298bdbfed48b28b21a76a64622ba", kill_on_drop: false }`
[INFO] [stdout] d3f07b1d31ded8ee5f97ecc33b8b56f05277298bdbfed48b28b21a76a64622ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72a6a871bc0b4095cc496fd2c8fc32280f0ee72e5ac294fe275837bdf84057f7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "72a6a871bc0b4095cc496fd2c8fc32280f0ee72e5ac294fe275837bdf84057f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked_list_cycle_detection v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "72a6a871bc0b4095cc496fd2c8fc32280f0ee72e5ac294fe275837bdf84057f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a6a871bc0b4095cc496fd2c8fc32280f0ee72e5ac294fe275837bdf84057f7", kill_on_drop: false }`
[INFO] [stdout] 72a6a871bc0b4095cc496fd2c8fc32280f0ee72e5ac294fe275837bdf84057f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 069026221e397519f94f25e52d65d8e1a8cabc41f83638649ad0905c62099707
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "069026221e397519f94f25e52d65d8e1a8cabc41f83638649ad0905c62099707", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked_list_cycle_detection v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "069026221e397519f94f25e52d65d8e1a8cabc41f83638649ad0905c62099707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "069026221e397519f94f25e52d65d8e1a8cabc41f83638649ad0905c62099707", kill_on_drop: false }`
[INFO] [stdout] 069026221e397519f94f25e52d65d8e1a8cabc41f83638649ad0905c62099707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b0af75aa2fc7460bc72160768ef6ef6b78e31a2eaafc42aecdafce6d6fa906a2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b0af75aa2fc7460bc72160768ef6ef6b78e31a2eaafc42aecdafce6d6fa906a2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linked_list_cycle_detection-424ea3fc4a41ec07)
[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" "b0af75aa2fc7460bc72160768ef6ef6b78e31a2eaafc42aecdafce6d6fa906a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0af75aa2fc7460bc72160768ef6ef6b78e31a2eaafc42aecdafce6d6fa906a2", kill_on_drop: false }`
[INFO] [stdout] b0af75aa2fc7460bc72160768ef6ef6b78e31a2eaafc42aecdafce6d6fa906a2