[INFO] cloning repository https://github.com/du108/02concurrency
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/du108/02concurrency" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdu108%2F02concurrency", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdu108%2F02concurrency'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b64542c1fdc25bbc5fd9c8bdcb4bd6def100cb8c
[INFO] checking du108/02concurrency against master#8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdu108%2F02concurrency" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/du108/02concurrency
[INFO] finished tweaking git repo https://github.com/du108/02concurrency
[INFO] tweaked toml for git repo https://github.com/du108/02concurrency written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/du108/02concurrency on toolchain 8f21a5c92ea55c348c275a1bc4fedbdf181e0d64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/du108/02concurrency 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" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c479b5fb7c433394d25bba337a877f7b877a0c9364bb22419ff426dbd53c708
[INFO] running `Command { std: "docker" "start" "-a" "0c479b5fb7c433394d25bba337a877f7b877a0c9364bb22419ff426dbd53c708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c479b5fb7c433394d25bba337a877f7b877a0c9364bb22419ff426dbd53c708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c479b5fb7c433394d25bba337a877f7b877a0c9364bb22419ff426dbd53c708", kill_on_drop: false }`
[INFO] [stdout] 0c479b5fb7c433394d25bba337a877f7b877a0c9364bb22419ff426dbd53c708
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f54536ed0a7524bfc8477aa07c0952c2f533fc0ef0192cb54e23e2a5d844831
[INFO] running `Command { std: "docker" "start" "-a" "6f54536ed0a7524bfc8477aa07c0952c2f533fc0ef0192cb54e23e2a5d844831", kill_on_drop: false }`
[INFO] [stderr]     Checking template v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "6f54536ed0a7524bfc8477aa07c0952c2f533fc0ef0192cb54e23e2a5d844831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f54536ed0a7524bfc8477aa07c0952c2f533fc0ef0192cb54e23e2a5d844831", kill_on_drop: false }`
[INFO] [stdout] 6f54536ed0a7524bfc8477aa07c0952c2f533fc0ef0192cb54e23e2a5d844831