[INFO] fetching crate video-summarizer 1.2.3...
[INFO] documenting video-summarizer-1.2.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate video-summarizer 1.2.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate video-summarizer 1.2.3 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 video-summarizer 1.2.3
[INFO] finished tweaking crates.io crate video-summarizer 1.2.3
[INFO] tweaked toml for crates.io crate video-summarizer 1.2.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate video-summarizer 1.2.3 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] 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] [stdout] 4c0dd3a972298d21322d4bde83d460171c06e6f80d639d5cf31b2da1a3b6821b
[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" "4c0dd3a972298d21322d4bde83d460171c06e6f80d639d5cf31b2da1a3b6821b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c0dd3a972298d21322d4bde83d460171c06e6f80d639d5cf31b2da1a3b6821b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c0dd3a972298d21322d4bde83d460171c06e6f80d639d5cf31b2da1a3b6821b", kill_on_drop: false }`
[INFO] [stdout] 4c0dd3a972298d21322d4bde83d460171c06e6f80d639d5cf31b2da1a3b6821b
[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] 949c2a88a1e616692d98aeaa83a263fe9ad2ab99bd89f9988f98bfc06ed02d3b
[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" "949c2a88a1e616692d98aeaa83a263fe9ad2ab99bd89f9988f98bfc06ed02d3b", 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]    Compiling debugtrace v0.1.0
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking either v0.1.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking minimp3 v0.3.3
[INFO] [stderr]     Checking backtrace v0.1.8
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking chomp v0.3.1
[INFO] [stderr]     Checking guid-parser v0.1.0
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking guid v0.1.0
[INFO] [stderr]     Checking guid-create v0.1.1
[INFO] [stderr]  Documenting video-summarizer v1.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.70s
[INFO] running `Command { std: "docker" "inspect" "949c2a88a1e616692d98aeaa83a263fe9ad2ab99bd89f9988f98bfc06ed02d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "949c2a88a1e616692d98aeaa83a263fe9ad2ab99bd89f9988f98bfc06ed02d3b", kill_on_drop: false }`
[INFO] [stdout] 949c2a88a1e616692d98aeaa83a263fe9ad2ab99bd89f9988f98bfc06ed02d3b