[INFO] cloning repository https://github.com/lvsoso/echo_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lvsoso/echo_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flvsoso%2Fecho_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flvsoso%2Fecho_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d01f228b13b21c2e5d6108385e96e5bf46e105dd
[INFO] documenting lvsoso/echo_server against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flvsoso%2Fecho_server" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lvsoso/echo_server on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lvsoso/echo_server
[INFO] finished tweaking git repo https://github.com/lvsoso/echo_server
[INFO] tweaked toml for git repo https://github.com/lvsoso/echo_server written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/lvsoso/echo_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1818b98db6509a10f72034673723d07ee5a05c1835720011578708e029f999b
[INFO] running `Command { std: "docker" "start" "-a" "b1818b98db6509a10f72034673723d07ee5a05c1835720011578708e029f999b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1818b98db6509a10f72034673723d07ee5a05c1835720011578708e029f999b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1818b98db6509a10f72034673723d07ee5a05c1835720011578708e029f999b", kill_on_drop: false }`
[INFO] [stdout] b1818b98db6509a10f72034673723d07ee5a05c1835720011578708e029f999b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b57ea55eaf369d4adc8698e5916f080e922e7c0c870a8081203f1d4a9b401f93
[INFO] running `Command { std: "docker" "start" "-a" "b57ea55eaf369d4adc8698e5916f080e922e7c0c870a8081203f1d4a9b401f93", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting echo_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "b57ea55eaf369d4adc8698e5916f080e922e7c0c870a8081203f1d4a9b401f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b57ea55eaf369d4adc8698e5916f080e922e7c0c870a8081203f1d4a9b401f93", kill_on_drop: false }`
[INFO] [stdout] b57ea55eaf369d4adc8698e5916f080e922e7c0c870a8081203f1d4a9b401f93