[INFO] cloning repository https://github.com/ludios/rust-plugin-bug-snafu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ludios/rust-plugin-bug-snafu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fludios%2Frust-plugin-bug-snafu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fludios%2Frust-plugin-bug-snafu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f51b26619279605e5043d4440a71857c0e48ff29
[INFO] documenting ludios/rust-plugin-bug-snafu 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%2Fludios%2Frust-plugin-bug-snafu" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ludios/rust-plugin-bug-snafu 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/ludios/rust-plugin-bug-snafu
[INFO] finished tweaking git repo https://github.com/ludios/rust-plugin-bug-snafu
[INFO] tweaked toml for git repo https://github.com/ludios/rust-plugin-bug-snafu written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/ludios/rust-plugin-bug-snafu 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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 8c8e4427c7770b43d660e6987973a2df40a16942a7958faebb404470d67661e9
[INFO] running `Command { std: "docker" "start" "-a" "8c8e4427c7770b43d660e6987973a2df40a16942a7958faebb404470d67661e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c8e4427c7770b43d660e6987973a2df40a16942a7958faebb404470d67661e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c8e4427c7770b43d660e6987973a2df40a16942a7958faebb404470d67661e9", kill_on_drop: false }`
[INFO] [stdout] 8c8e4427c7770b43d660e6987973a2df40a16942a7958faebb404470d67661e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 4fef4aeaabaf8646c663ac23f6fef3ddd50a3b136b3740f07f55f5460cd948dd
[INFO] running `Command { std: "docker" "start" "-a" "4fef4aeaabaf8646c663ac23f6fef3ddd50a3b136b3740f07f55f5460cd948dd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling snafu-derive v0.5.0
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]     Checking snafu v0.5.0
[INFO] [stderr]  Documenting rust-plugin-bug-snafu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 55s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "4fef4aeaabaf8646c663ac23f6fef3ddd50a3b136b3740f07f55f5460cd948dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fef4aeaabaf8646c663ac23f6fef3ddd50a3b136b3740f07f55f5460cd948dd", kill_on_drop: false }`
[INFO] [stdout] 4fef4aeaabaf8646c663ac23f6fef3ddd50a3b136b3740f07f55f5460cd948dd