[INFO] fetching crate arf 0.1.0...
[INFO] checking arf-0.1.0 against master#42bd138126b0a9d38d65bc9973e72de3c5b6c37f for pr-99217
[INFO] extracting crate arf 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate arf 0.1.0 on toolchain 42bd138126b0a9d38d65bc9973e72de3c5b6c37f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arf 0.1.0
[INFO] finished tweaking crates.io crate arf 0.1.0
[INFO] tweaked toml for crates.io crate arf 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate arf 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5729df9253a882e1f620b62db7fc707ace0674d38192697da9ed9332d9d8a30
[INFO] running `Command { std: "docker" "start" "-a" "f5729df9253a882e1f620b62db7fc707ace0674d38192697da9ed9332d9d8a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5729df9253a882e1f620b62db7fc707ace0674d38192697da9ed9332d9d8a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5729df9253a882e1f620b62db7fc707ace0674d38192697da9ed9332d9d8a30", kill_on_drop: false }`
[INFO] [stdout] f5729df9253a882e1f620b62db7fc707ace0674d38192697da9ed9332d9d8a30
[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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfe3101efb67ec8bd0de256c874ab8ecd056b8113f8a6fffc5e93f6058395668
[INFO] running `Command { std: "docker" "start" "-a" "dfe3101efb67ec8bd0de256c874ab8ecd056b8113f8a6fffc5e93f6058395668", kill_on_drop: false }`
[INFO] [stderr]     Checking arf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "dfe3101efb67ec8bd0de256c874ab8ecd056b8113f8a6fffc5e93f6058395668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe3101efb67ec8bd0de256c874ab8ecd056b8113f8a6fffc5e93f6058395668", kill_on_drop: false }`
[INFO] [stdout] dfe3101efb67ec8bd0de256c874ab8ecd056b8113f8a6fffc5e93f6058395668