[INFO] cloning repository https://github.com/lucascaro/rust-game_of_life
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucascaro/rust-game_of_life" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucascaro%2Frust-game_of_life", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucascaro%2Frust-game_of_life'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28baa8d2f3669249b691b47c49af442ee78a7724
[INFO] checking lucascaro/rust-game_of_life against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucascaro%2Frust-game_of_life" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucascaro/rust-game_of_life on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucascaro/rust-game_of_life
[INFO] finished tweaking git repo https://github.com/lucascaro/rust-game_of_life
[INFO] tweaked toml for git repo https://github.com/lucascaro/rust-game_of_life written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/lucascaro/rust-game_of_life already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d8f5493b84acfce8d80784639c44dd700e51cc4c5627b015c737dc1ed49e8d3
[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" "0d8f5493b84acfce8d80784639c44dd700e51cc4c5627b015c737dc1ed49e8d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d8f5493b84acfce8d80784639c44dd700e51cc4c5627b015c737dc1ed49e8d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d8f5493b84acfce8d80784639c44dd700e51cc4c5627b015c737dc1ed49e8d3", kill_on_drop: false }`
[INFO] [stdout] 0d8f5493b84acfce8d80784639c44dd700e51cc4c5627b015c737dc1ed49e8d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1575d70a22b3081c60fdc8518ace84155dfb24e351c460d296be65c946816a5
[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" "d1575d70a22b3081c60fdc8518ace84155dfb24e351c460d296be65c946816a5", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking atty v0.2.9
[INFO] [stderr]    Compiling ncurses v5.91.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking simplelog v0.5.1
[INFO] [stderr]     Checking life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.16s
[INFO] running `Command { std: "docker" "inspect" "d1575d70a22b3081c60fdc8518ace84155dfb24e351c460d296be65c946816a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1575d70a22b3081c60fdc8518ace84155dfb24e351c460d296be65c946816a5", kill_on_drop: false }`
[INFO] [stdout] d1575d70a22b3081c60fdc8518ace84155dfb24e351c460d296be65c946816a5