[INFO] fetching crate docuum 0.12.0...
[INFO] documenting docuum-0.12.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate docuum 0.12.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate docuum 0.12.0 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 crates.io crate docuum 0.12.0
[INFO] finished tweaking crates.io crate docuum 0.12.0
[INFO] tweaked toml for crates.io crate docuum 0.12.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate docuum 0.12.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded hyper-unix-connector v0.1.4
[INFO] [stderr]   Downloaded bollard v0.7.2
[INFO] [stderr]   Downloaded bollard-stubs v1.40.2
[INFO] [stderr]   Downloaded byte-unit v3.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] e923e889324e2a3521e04eded2037166055ca616cc334f8d760fa8f6b1437dd3
[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" "e923e889324e2a3521e04eded2037166055ca616cc334f8d760fa8f6b1437dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e923e889324e2a3521e04eded2037166055ca616cc334f8d760fa8f6b1437dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e923e889324e2a3521e04eded2037166055ca616cc334f8d760fa8f6b1437dd3", kill_on_drop: false }`
[INFO] [stdout] e923e889324e2a3521e04eded2037166055ca616cc334f8d760fa8f6b1437dd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3ad3926a10ba0ec3dc2d921d3ef81e495a28d6313ce645e9b95115457dfcbc94
[INFO] running `Command { std: "docker" "start" "-a" "3ad3926a10ba0ec3dc2d921d3ef81e495a28d6313ce645e9b95115457dfcbc94", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking byte-unit v3.0.3
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking tracing v0.1.16
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking colored v1.9.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking serde_with v1.4.0
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking bollard-stubs v1.40.2
[INFO] [stderr]     Checking hyper-unix-connector v0.1.4
[INFO] [stderr]     Checking bollard v0.7.2
[INFO] [stderr]  Documenting docuum v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 32s
[INFO] running `Command { std: "docker" "inspect" "3ad3926a10ba0ec3dc2d921d3ef81e495a28d6313ce645e9b95115457dfcbc94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad3926a10ba0ec3dc2d921d3ef81e495a28d6313ce645e9b95115457dfcbc94", kill_on_drop: false }`
[INFO] [stdout] 3ad3926a10ba0ec3dc2d921d3ef81e495a28d6313ce645e9b95115457dfcbc94