[INFO] cloning repository https://github.com/comfortablynick/todors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/comfortablynick/todors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomfortablynick%2Ftodors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomfortablynick%2Ftodors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53ba84f42515cb8d41f7d787458633ebea1888c7
[INFO] documenting comfortablynick/todors against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomfortablynick%2Ftodors" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/comfortablynick/todors on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/comfortablynick/todors
[INFO] finished tweaking git repo https://github.com/comfortablynick/todors
[INFO] tweaked toml for git repo https://github.com/comfortablynick/todors written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/comfortablynick/todors already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shared_child v0.3.4
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded todo-txt v1.4.0
[INFO] [stderr]   Downloaded duct v0.13.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9c4343e677347098effec8aa22d94b64ffc85056a21e53313db43cca45c2486b
[INFO] running `Command { std: "docker" "start" "-a" "9c4343e677347098effec8aa22d94b64ffc85056a21e53313db43cca45c2486b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c4343e677347098effec8aa22d94b64ffc85056a21e53313db43cca45c2486b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4343e677347098effec8aa22d94b64ffc85056a21e53313db43cca45c2486b", kill_on_drop: false }`
[INFO] [stdout] 9c4343e677347098effec8aa22d94b64ffc85056a21e53313db43cca45c2486b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c69fcc89457b58a97114b21d57d5352cbaff079290b01736ab18ad6227ca08f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3c69fcc89457b58a97114b21d57d5352cbaff079290b01736ab18ad6227ca08f", kill_on_drop: false }`
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking shared_child v0.3.4
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking duct v0.13.4
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking todo-txt v1.4.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]  Documenting todors v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.52s
[INFO] running `Command { std: "docker" "inspect" "3c69fcc89457b58a97114b21d57d5352cbaff079290b01736ab18ad6227ca08f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c69fcc89457b58a97114b21d57d5352cbaff079290b01736ab18ad6227ca08f", kill_on_drop: false }`
[INFO] [stdout] 3c69fcc89457b58a97114b21d57d5352cbaff079290b01736ab18ad6227ca08f