[INFO] cloning repository https://github.com/DamianSkrzypczak/rust_lang_book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DamianSkrzypczak/rust_lang_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDamianSkrzypczak%2Frust_lang_book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDamianSkrzypczak%2Frust_lang_book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f95782e4b648e39a154ca4911755cad2c0768ef8
[INFO] checking DamianSkrzypczak/rust_lang_book against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDamianSkrzypczak%2Frust_lang_book" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DamianSkrzypczak/rust_lang_book on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DamianSkrzypczak/rust_lang_book
[INFO] finished tweaking git repo https://github.com/DamianSkrzypczak/rust_lang_book
[INFO] tweaked toml for git repo https://github.com/DamianSkrzypczak/rust_lang_book written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/DamianSkrzypczak/rust_lang_book already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5eb075a6bd3d9d84c522bab4094587b908579e8a13659b6e05104216a993b7e
[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" "b5eb075a6bd3d9d84c522bab4094587b908579e8a13659b6e05104216a993b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5eb075a6bd3d9d84c522bab4094587b908579e8a13659b6e05104216a993b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5eb075a6bd3d9d84c522bab4094587b908579e8a13659b6e05104216a993b7e", kill_on_drop: false }`
[INFO] [stdout] b5eb075a6bd3d9d84c522bab4094587b908579e8a13659b6e05104216a993b7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c66759933758241fe360565e88d88e7025df17ef31be8e76c558871d12725d5
[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" "1c66759933758241fe360565e88d88e7025df17ef31be8e76c558871d12725d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]     Checking functions v0.1.0 (/opt/rustwide/workdir/excercises/functions)
[INFO] [stderr]     Checking temperature_converter v0.1.0 (/opt/rustwide/workdir/excercises/temperature_converter)
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir/excercises/hello)
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir/excercises/guessing_game)
[INFO] [stderr]     Checking rust_lang_book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.92s
[INFO] running `Command { std: "docker" "inspect" "1c66759933758241fe360565e88d88e7025df17ef31be8e76c558871d12725d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c66759933758241fe360565e88d88e7025df17ef31be8e76c558871d12725d5", kill_on_drop: false }`
[INFO] [stdout] 1c66759933758241fe360565e88d88e7025df17ef31be8e76c558871d12725d5