[INFO] fetching crate minigrep-by-yusei 0.1.0...
[INFO] documenting minigrep-by-yusei-0.1.0 against master#ef324565d071c6d7e2477a195648549e33d6a465 for pr-121659-bump-pulldown-cmark
[INFO] extracting crate minigrep-by-yusei 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate minigrep-by-yusei 0.1.0 on toolchain ef324565d071c6d7e2477a195648549e33d6a465
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minigrep-by-yusei 0.1.0
[INFO] finished tweaking crates.io crate minigrep-by-yusei 0.1.0
[INFO] tweaked toml for crates.io crate minigrep-by-yusei 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate minigrep-by-yusei 0.1.0 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" "+ef324565d071c6d7e2477a195648549e33d6a465" "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] documenting minigrep-by-yusei-0.1.0 against try#223112bf1ca31911a6475910c77b36bfa127d5f8 for pr-121659-bump-pulldown-cmark
[INFO] extracting crate minigrep-by-yusei 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate minigrep-by-yusei 0.1.0 on toolchain 223112bf1ca31911a6475910c77b36bfa127d5f8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minigrep-by-yusei 0.1.0
[INFO] finished tweaking crates.io crate minigrep-by-yusei 0.1.0
[INFO] tweaked toml for crates.io crate minigrep-by-yusei 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate minigrep-by-yusei 0.1.0 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" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "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-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" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa28a1f94b6d4662f55c2102db0edb990136498e8fcf84a141890af6c7ec2f15
[INFO] running `Command { std: "docker" "start" "-a" "fa28a1f94b6d4662f55c2102db0edb990136498e8fcf84a141890af6c7ec2f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa28a1f94b6d4662f55c2102db0edb990136498e8fcf84a141890af6c7ec2f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa28a1f94b6d4662f55c2102db0edb990136498e8fcf84a141890af6c7ec2f15", kill_on_drop: false }`
[INFO] [stdout] fa28a1f94b6d4662f55c2102db0edb990136498e8fcf84a141890af6c7ec2f15
[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" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67365b9074bafd124212b9d9a0c117ddd4455c3426d72eff54828e62f39e007e
[INFO] running `Command { std: "docker" "start" "-a" "67365b9074bafd124212b9d9a0c117ddd4455c3426d72eff54828e62f39e007e", kill_on_drop: false }`
[INFO] [stderr]  Documenting minigrep-by-yusei v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking minigrep-by-yusei v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 0.56s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/minigrep/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/minigrep_by_yusei/index.html
[INFO] running `Command { std: "docker" "inspect" "67365b9074bafd124212b9d9a0c117ddd4455c3426d72eff54828e62f39e007e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67365b9074bafd124212b9d9a0c117ddd4455c3426d72eff54828e62f39e007e", kill_on_drop: false }`
[INFO] [stdout] 67365b9074bafd124212b9d9a0c117ddd4455c3426d72eff54828e62f39e007e
[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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dc7d0475cd5d3a0802257536f0777cdc19f5fdfb7ffa291a098140beddd3b78
[INFO] running `Command { std: "docker" "start" "-a" "8dc7d0475cd5d3a0802257536f0777cdc19f5fdfb7ffa291a098140beddd3b78", kill_on_drop: false }`
[INFO] [stderr]  Documenting minigrep-by-yusei v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/minigrep/index.html
[INFO] running `Command { std: "docker" "inspect" "8dc7d0475cd5d3a0802257536f0777cdc19f5fdfb7ffa291a098140beddd3b78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc7d0475cd5d3a0802257536f0777cdc19f5fdfb7ffa291a098140beddd3b78", kill_on_drop: false }`
[INFO] [stdout] 8dc7d0475cd5d3a0802257536f0777cdc19f5fdfb7ffa291a098140beddd3b78