[INFO] cloning repository https://github.com/UnlawfulMonad/regtest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/UnlawfulMonad/regtest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnlawfulMonad%2Fregtest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnlawfulMonad%2Fregtest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 263c3a5cdf093113a911b84579d4c0eb3b609b49
[INFO] documenting UnlawfulMonad/regtest 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%2FUnlawfulMonad%2Fregtest" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/UnlawfulMonad/regtest 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/UnlawfulMonad/regtest
[INFO] finished tweaking git repo https://github.com/UnlawfulMonad/regtest
[INFO] tweaked toml for git repo https://github.com/UnlawfulMonad/regtest written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/UnlawfulMonad/regtest 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atty v0.2.6
[INFO] [stderr]   Downloaded clap v2.29.0
[INFO] [stderr]   Downloaded regex v1.0.1
[INFO] [stderr]   Downloaded encode_unicode v0.1.3
[INFO] [stderr]   Downloaded rustyline v1.0.0
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] ccb10c9f250d085ab5ac0b8c0e65acdbe821888e65965d7bc0f19d4f57f3f561
[INFO] running `Command { std: "docker" "start" "-a" "ccb10c9f250d085ab5ac0b8c0e65acdbe821888e65965d7bc0f19d4f57f3f561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccb10c9f250d085ab5ac0b8c0e65acdbe821888e65965d7bc0f19d4f57f3f561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccb10c9f250d085ab5ac0b8c0e65acdbe821888e65965d7bc0f19d4f57f3f561", kill_on_drop: false }`
[INFO] [stdout] ccb10c9f250d085ab5ac0b8c0e65acdbe821888e65965d7bc0f19d4f57f3f561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 6265ab957fb6200e14cfb2f29db043bdb73ebc3dab487eeaa2e281210b36d83d
[INFO] running `Command { std: "docker" "start" "-a" "6265ab957fb6200e14cfb2f29db043bdb73ebc3dab487eeaa2e281210b36d83d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.35
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking xdg v2.1.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking app_dirs v1.1.1
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking clap v2.29.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]  Documenting regtest v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.50s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "6265ab957fb6200e14cfb2f29db043bdb73ebc3dab487eeaa2e281210b36d83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6265ab957fb6200e14cfb2f29db043bdb73ebc3dab487eeaa2e281210b36d83d", kill_on_drop: false }`
[INFO] [stdout] 6265ab957fb6200e14cfb2f29db043bdb73ebc3dab487eeaa2e281210b36d83d