[INFO] fetching crate messagepack-rs 0.8.1...
[INFO] checking messagepack-rs-0.8.1 against master#c29082fe7dc6e902169cacbae165562a7e4a1fd6 for pr-120805
[INFO] extracting crate messagepack-rs 0.8.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate messagepack-rs 0.8.1 on toolchain c29082fe7dc6e902169cacbae165562a7e4a1fd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c29082fe7dc6e902169cacbae165562a7e4a1fd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate messagepack-rs 0.8.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate messagepack-rs 0.8.1
[INFO] tweaked toml for crates.io crate messagepack-rs 0.8.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate messagepack-rs 0.8.1 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" "+c29082fe7dc6e902169cacbae165562a7e4a1fd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking messagepack-rs-0.8.1 against try#a76cc2633df38feca72f20156e7d9e4b074337f3 for pr-120805
[INFO] extracting crate messagepack-rs 0.8.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate messagepack-rs 0.8.1 on toolchain a76cc2633df38feca72f20156e7d9e4b074337f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate messagepack-rs 0.8.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate messagepack-rs 0.8.1
[INFO] tweaked toml for crates.io crate messagepack-rs 0.8.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate messagepack-rs 0.8.1 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" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "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 messagepack-rs-macros v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b1eda45bef5c457dda8f2283bfbda41b3ba52747648dbc67d4a1eb9d7c7962f
[INFO] running `Command { std: "docker" "start" "-a" "1b1eda45bef5c457dda8f2283bfbda41b3ba52747648dbc67d4a1eb9d7c7962f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b1eda45bef5c457dda8f2283bfbda41b3ba52747648dbc67d4a1eb9d7c7962f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b1eda45bef5c457dda8f2283bfbda41b3ba52747648dbc67d4a1eb9d7c7962f", kill_on_drop: false }`
[INFO] [stdout] 1b1eda45bef5c457dda8f2283bfbda41b3ba52747648dbc67d4a1eb9d7c7962f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5964c88ea41991c5c4f25f7b08176c16f91884864044563a7c3e3c364f7e8b56
[INFO] running `Command { std: "docker" "start" "-a" "5964c88ea41991c5c4f25f7b08176c16f91884864044563a7c3e3c364f7e8b56", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling messagepack-rs-macros v0.1.2
[INFO] [stderr]     Checking messagepack-rs v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "5964c88ea41991c5c4f25f7b08176c16f91884864044563a7c3e3c364f7e8b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5964c88ea41991c5c4f25f7b08176c16f91884864044563a7c3e3c364f7e8b56", kill_on_drop: false }`
[INFO] [stdout] 5964c88ea41991c5c4f25f7b08176c16f91884864044563a7c3e3c364f7e8b56