[INFO] fetching crate changelog 0.3.4...
[INFO] documenting changelog-0.3.4 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate changelog 0.3.4 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate changelog 0.3.4 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 changelog 0.3.4
[INFO] finished tweaking crates.io crate changelog 0.3.4
[INFO] tweaked toml for crates.io crate changelog 0.3.4 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate changelog 0.3.4 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 clap_flags v0.5.0
[INFO] [stderr]   Downloaded comrak v0.7.0
[INFO] [stderr]   Downloaded entities v1.0.1
[INFO] [stderr]   Downloaded pest_generator v2.1.2
[INFO] [stderr]   Downloaded libssh2-sys v0.2.15
[INFO] [stderr]   Downloaded mktemp v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] ac4058dcb3a7617cf4b788adf49b19ec93363c0a3e888616e652102459711135
[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" "ac4058dcb3a7617cf4b788adf49b19ec93363c0a3e888616e652102459711135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac4058dcb3a7617cf4b788adf49b19ec93363c0a3e888616e652102459711135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4058dcb3a7617cf4b788adf49b19ec93363c0a3e888616e652102459711135", kill_on_drop: false }`
[INFO] [stdout] ac4058dcb3a7617cf4b788adf49b19ec93363c0a3e888616e652102459711135
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 03de7c26c123b625f9b0d718de401c82f56597a4133e3f19df934d225ccb5e38
[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" "03de7c26c123b625f9b0d718de401c82f56597a4133e3f19df934d225ccb5e38", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking regex-syntax v0.6.15
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking mktemp v0.4.0
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling libssh2-sys v0.2.15
[INFO] [stderr]    Compiling libgit2-sys v0.10.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.44
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pest_generator v2.1.2
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling git2 v0.11.0
[INFO] [stderr]     Checking comrak v0.7.0
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]    Compiling structopt v0.3.11
[INFO] [stderr]     Checking clap_flags v0.5.0
[INFO] [stderr]    Compiling changelog v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking human-panic v1.0.1
[INFO] [stderr]  Documenting changelog v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 56s
[INFO] running `Command { std: "docker" "inspect" "03de7c26c123b625f9b0d718de401c82f56597a4133e3f19df934d225ccb5e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03de7c26c123b625f9b0d718de401c82f56597a4133e3f19df934d225ccb5e38", kill_on_drop: false }`
[INFO] [stdout] 03de7c26c123b625f9b0d718de401c82f56597a4133e3f19df934d225ccb5e38