[INFO] cloning repository https://github.com/ryotaro-tanaka/blackjack_sim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryotaro-tanaka/blackjack_sim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryotaro-tanaka%2Fblackjack_sim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryotaro-tanaka%2Fblackjack_sim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb2215aadb07f74cec5cabeda004c1228eca3e10
[INFO] checking ryotaro-tanaka/blackjack_sim against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryotaro-tanaka%2Fblackjack_sim" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryotaro-tanaka/blackjack_sim on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryotaro-tanaka/blackjack_sim
[INFO] finished tweaking git repo https://github.com/ryotaro-tanaka/blackjack_sim
[INFO] tweaked toml for git repo https://github.com/ryotaro-tanaka/blackjack_sim written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ryotaro-tanaka/blackjack_sim already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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] eebd8099723ef0f1ad85079f3f2b23ef4708ba88cdfedd029e3a09f379b6b1db
[INFO] running `Command { std: "docker" "start" "-a" "eebd8099723ef0f1ad85079f3f2b23ef4708ba88cdfedd029e3a09f379b6b1db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eebd8099723ef0f1ad85079f3f2b23ef4708ba88cdfedd029e3a09f379b6b1db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eebd8099723ef0f1ad85079f3f2b23ef4708ba88cdfedd029e3a09f379b6b1db", kill_on_drop: false }`
[INFO] [stdout] eebd8099723ef0f1ad85079f3f2b23ef4708ba88cdfedd029e3a09f379b6b1db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 013f2af0d8ab9d300e0657c9f43b668e7f22cf845c875ef35bd7170024961ff8
[INFO] running `Command { std: "docker" "start" "-a" "013f2af0d8ab9d300e0657c9f43b668e7f22cf845c875ef35bd7170024961ff8", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking blackjack_sim v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.70s
[INFO] running `Command { std: "docker" "inspect" "013f2af0d8ab9d300e0657c9f43b668e7f22cf845c875ef35bd7170024961ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "013f2af0d8ab9d300e0657c9f43b668e7f22cf845c875ef35bd7170024961ff8", kill_on_drop: false }`
[INFO] [stdout] 013f2af0d8ab9d300e0657c9f43b668e7f22cf845c875ef35bd7170024961ff8