[INFO] cloning repository https://github.com/seungha-kim/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/seungha-kim/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseungha-kim%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseungha-kim%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d68a9bf554865f68025307033b6466798698d7d
[INFO] checking seungha-kim/rust-practice against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseungha-kim%2Frust-practice" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seungha-kim/rust-practice on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/seungha-kim/rust-practice
[INFO] finished tweaking git repo https://github.com/seungha-kim/rust-practice
[INFO] tweaked toml for git repo https://github.com/seungha-kim/rust-practice written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/seungha-kim/rust-practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d97520c512ab9ad23644de923c7754996a41d6ba67b91a8ece346423b542a6da
[INFO] running `Command { std: "docker" "start" "-a" "d97520c512ab9ad23644de923c7754996a41d6ba67b91a8ece346423b542a6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d97520c512ab9ad23644de923c7754996a41d6ba67b91a8ece346423b542a6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d97520c512ab9ad23644de923c7754996a41d6ba67b91a8ece346423b542a6da", kill_on_drop: false }`
[INFO] [stdout] d97520c512ab9ad23644de923c7754996a41d6ba67b91a8ece346423b542a6da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a89d94dc15a24adfa763261eb28ba2637adf7ea4e976dfaccd0873c6bcaf5fa
[INFO] running `Command { std: "docker" "start" "-a" "8a89d94dc15a24adfa763261eb28ba2637adf7ea4e976dfaccd0873c6bcaf5fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking snakehead v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "8a89d94dc15a24adfa763261eb28ba2637adf7ea4e976dfaccd0873c6bcaf5fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a89d94dc15a24adfa763261eb28ba2637adf7ea4e976dfaccd0873c6bcaf5fa", kill_on_drop: false }`
[INFO] [stdout] 8a89d94dc15a24adfa763261eb28ba2637adf7ea4e976dfaccd0873c6bcaf5fa