[INFO] cloning repository https://github.com/alexei-ozerov/map-reduce-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexei-ozerov/map-reduce-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexei-ozerov%2Fmap-reduce-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexei-ozerov%2Fmap-reduce-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e91180804b16b2595bf9a256daccb0decf870f2
[INFO] checking alexei-ozerov/map-reduce-exercise against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexei-ozerov%2Fmap-reduce-exercise" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexei-ozerov/map-reduce-exercise on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexei-ozerov/map-reduce-exercise
[INFO] finished tweaking git repo https://github.com/alexei-ozerov/map-reduce-exercise
[INFO] tweaked toml for git repo https://github.com/alexei-ozerov/map-reduce-exercise written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/alexei-ozerov/map-reduce-exercise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fb5909c2b8c9675ea2235be973359674b1236a5d8a33d0680a24db9c27d8960
[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" "0fb5909c2b8c9675ea2235be973359674b1236a5d8a33d0680a24db9c27d8960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fb5909c2b8c9675ea2235be973359674b1236a5d8a33d0680a24db9c27d8960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fb5909c2b8c9675ea2235be973359674b1236a5d8a33d0680a24db9c27d8960", kill_on_drop: false }`
[INFO] [stdout] 0fb5909c2b8c9675ea2235be973359674b1236a5d8a33d0680a24db9c27d8960
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+4a23c45c7893f1416456144e3883cc48ea91722e" "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] 42873a63bb24bc0bbd7e30a4ab6f80dbabb7c8d663f01464e5a76f151c1f9667
[INFO] running `Command { std: "docker" "start" "-a" "42873a63bb24bc0bbd7e30a4ab6f80dbabb7c8d663f01464e5a76f151c1f9667", kill_on_drop: false }`
[INFO] [stderr]     Checking map-reduce-exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "42873a63bb24bc0bbd7e30a4ab6f80dbabb7c8d663f01464e5a76f151c1f9667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42873a63bb24bc0bbd7e30a4ab6f80dbabb7c8d663f01464e5a76f151c1f9667", kill_on_drop: false }`
[INFO] [stdout] 42873a63bb24bc0bbd7e30a4ab6f80dbabb7c8d663f01464e5a76f151c1f9667