[INFO] fetching crate option-lock 0.3.1...
[INFO] checking option-lock-0.3.1 against master#3f28fe133475ec5faf3413b556bf3cfb0d51336c for pr-112365-2
[INFO] extracting crate option-lock 0.3.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate option-lock 0.3.1 on toolchain 3f28fe133475ec5faf3413b556bf3cfb0d51336c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f28fe133475ec5faf3413b556bf3cfb0d51336c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate option-lock 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate option-lock 0.3.1
[INFO] tweaked toml for crates.io crate option-lock 0.3.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate option-lock 0.3.1 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" "+3f28fe133475ec5faf3413b556bf3cfb0d51336c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 option-lock-0.3.1 against try#2eb702bf20a12c67e5629a5c82890c910c267bd9 for pr-112365-2
[INFO] extracting crate option-lock 0.3.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate option-lock 0.3.1 on toolchain 2eb702bf20a12c67e5629a5c82890c910c267bd9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate option-lock 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate option-lock 0.3.1
[INFO] tweaked toml for crates.io crate option-lock 0.3.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate option-lock 0.3.1 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" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "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 cast v0.2.6
[INFO] [stderr]   Downloaded bstr v0.2.16
[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" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f4622721303a575a13198eba29816709e673150d152839be0574de1dc13f886
[INFO] running `Command { std: "docker" "start" "-a" "4f4622721303a575a13198eba29816709e673150d152839be0574de1dc13f886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f4622721303a575a13198eba29816709e673150d152839be0574de1dc13f886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f4622721303a575a13198eba29816709e673150d152839be0574de1dc13f886", kill_on_drop: false }`
[INFO] [stdout] 4f4622721303a575a13198eba29816709e673150d152839be0574de1dc13f886
[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" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 387ee49ca3448d6fe6a06eaf0566953576b0239c6887bb77dd866ee3b03d74ca
[INFO] running `Command { std: "docker" "start" "-a" "387ee49ca3448d6fe6a06eaf0566953576b0239c6887bb77dd866ee3b03d74ca", kill_on_drop: false }`
[INFO] [stderr]     Checking option-lock v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "387ee49ca3448d6fe6a06eaf0566953576b0239c6887bb77dd866ee3b03d74ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "387ee49ca3448d6fe6a06eaf0566953576b0239c6887bb77dd866ee3b03d74ca", kill_on_drop: false }`
[INFO] [stdout] 387ee49ca3448d6fe6a06eaf0566953576b0239c6887bb77dd866ee3b03d74ca