[INFO] cloning repository https://github.com/ArchDH/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ArchDH/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArchDH%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArchDH%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3b6614a447bea5a0df781c125cb96380abb96e0
[INFO] checking ArchDH/rust_practice against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArchDH%2Frust_practice" "/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/ArchDH/rust_practice on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ArchDH/rust_practice
[INFO] finished tweaking git repo https://github.com/ArchDH/rust_practice
[INFO] tweaked toml for git repo https://github.com/ArchDH/rust_practice written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ArchDH/rust_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a560d9431dc4fae8331913bea631ce1efc7e81c246b8fa3362b4629f5035b4f5
[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" "a560d9431dc4fae8331913bea631ce1efc7e81c246b8fa3362b4629f5035b4f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a560d9431dc4fae8331913bea631ce1efc7e81c246b8fa3362b4629f5035b4f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a560d9431dc4fae8331913bea631ce1efc7e81c246b8fa3362b4629f5035b4f5", kill_on_drop: false }`
[INFO] [stdout] a560d9431dc4fae8331913bea631ce1efc7e81c246b8fa3362b4629f5035b4f5
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "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] aaa7d909192c986c2c408c63fa1d2db66e09cde1cc594ed7f3b72357ddb9de9f
[INFO] running `Command { std: "docker" "start" "-a" "aaa7d909192c986c2c408c63fa1d2db66e09cde1cc594ed7f3b72357ddb9de9f", kill_on_drop: false }`
[INFO] [stderr]     Checking Rust_Practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "aaa7d909192c986c2c408c63fa1d2db66e09cde1cc594ed7f3b72357ddb9de9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa7d909192c986c2c408c63fa1d2db66e09cde1cc594ed7f3b72357ddb9de9f", kill_on_drop: false }`
[INFO] [stdout] aaa7d909192c986c2c408c63fa1d2db66e09cde1cc594ed7f3b72357ddb9de9f