[INFO] cloning repository https://github.com/AshleeCW/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/AshleeCW/Rust-Practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAshleeCW%2FRust-Practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAshleeCW%2FRust-Practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0ff63b9e9957aa75bd68ba690b121f806b1129b
[INFO] checking AshleeCW/Rust-Practice against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAshleeCW%2FRust-Practice" "/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/AshleeCW/Rust-Practice on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AshleeCW/Rust-Practice
[INFO] finished tweaking git repo https://github.com/AshleeCW/Rust-Practice
[INFO] tweaked toml for git repo https://github.com/AshleeCW/Rust-Practice written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/AshleeCW/Rust-Practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33bc83b9b463bf876486cbabb8ee74b810f5c8dee7c58122e46702a72e636d20
[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" "33bc83b9b463bf876486cbabb8ee74b810f5c8dee7c58122e46702a72e636d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33bc83b9b463bf876486cbabb8ee74b810f5c8dee7c58122e46702a72e636d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33bc83b9b463bf876486cbabb8ee74b810f5c8dee7c58122e46702a72e636d20", kill_on_drop: false }`
[INFO] [stdout] 33bc83b9b463bf876486cbabb8ee74b810f5c8dee7c58122e46702a72e636d20
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 4ec8be4e9a0cff4f942fcd1cd8315865a55c99d32c0ef52c4679b2a03f9fcbe3
[INFO] running `Command { std: "docker" "start" "-a" "4ec8be4e9a0cff4f942fcd1cd8315865a55c99d32c0ef52c4679b2a03f9fcbe3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "4ec8be4e9a0cff4f942fcd1cd8315865a55c99d32c0ef52c4679b2a03f9fcbe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec8be4e9a0cff4f942fcd1cd8315865a55c99d32c0ef52c4679b2a03f9fcbe3", kill_on_drop: false }`
[INFO] [stdout] 4ec8be4e9a0cff4f942fcd1cd8315865a55c99d32c0ef52c4679b2a03f9fcbe3