[INFO] cloning repository https://github.com/wanghaofuf/guessing_game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wanghaofuf/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwanghaofuf%2Fguessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwanghaofuf%2Fguessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f336fca8227fcf6c8bbf39d5fd836c8044bf03f
[INFO] checking wanghaofuf/guessing_game against try#78c81ee3917a99dcff6e2e6822800f0492c415c3 for pr-148967
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwanghaofuf%2Fguessing_game" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wanghaofuf/guessing_game
[INFO] finished tweaking git repo https://github.com/wanghaofuf/guessing_game
[INFO] tweaked toml for git repo https://github.com/wanghaofuf/guessing_game written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wanghaofuf/guessing_game on toolchain 78c81ee3917a99dcff6e2e6822800f0492c415c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wanghaofuf/guessing_game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 081c4d91f5ec81d95aed02ab8b1dcbc4d423438f5f6db9f21485d437219913b5
[INFO] running `Command { std: "docker" "start" "-a" "081c4d91f5ec81d95aed02ab8b1dcbc4d423438f5f6db9f21485d437219913b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "081c4d91f5ec81d95aed02ab8b1dcbc4d423438f5f6db9f21485d437219913b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081c4d91f5ec81d95aed02ab8b1dcbc4d423438f5f6db9f21485d437219913b5", kill_on_drop: false }`
[INFO] [stdout] 081c4d91f5ec81d95aed02ab8b1dcbc4d423438f5f6db9f21485d437219913b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bc32f99767adffcd5a3fb073543ebf654bd82595ca931ee3c0a5f8cd8471b3f
[INFO] running `Command { std: "docker" "start" "-a" "3bc32f99767adffcd5a3fb073543ebf654bd82595ca931ee3c0a5f8cd8471b3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "3bc32f99767adffcd5a3fb073543ebf654bd82595ca931ee3c0a5f8cd8471b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc32f99767adffcd5a3fb073543ebf654bd82595ca931ee3c0a5f8cd8471b3f", kill_on_drop: false }`
[INFO] [stdout] 3bc32f99767adffcd5a3fb073543ebf654bd82595ca931ee3c0a5f8cd8471b3f