[INFO] fetching crate cargo-binutils 0.3.1...
[INFO] documenting cargo-binutils-0.3.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate cargo-binutils 0.3.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cargo-binutils 0.3.1 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 cargo-binutils 0.3.1
[INFO] finished tweaking crates.io crate cargo-binutils 0.3.1
[INFO] tweaked toml for crates.io crate cargo-binutils 0.3.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate cargo-binutils 0.3.1 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 517cc85ed209bb89ae751ea81e06b85d7af031a87aa75e561995f1d4b6e17044
[INFO] running `Command { std: "docker" "start" "-a" "517cc85ed209bb89ae751ea81e06b85d7af031a87aa75e561995f1d4b6e17044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "517cc85ed209bb89ae751ea81e06b85d7af031a87aa75e561995f1d4b6e17044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "517cc85ed209bb89ae751ea81e06b85d7af031a87aa75e561995f1d4b6e17044", kill_on_drop: false }`
[INFO] [stdout] 517cc85ed209bb89ae751ea81e06b85d7af031a87aa75e561995f1d4b6e17044
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] c53ed33bbc1ab31e2c5b268d96bc5a19f25ee17fff929c847db7235e82aaf1f1
[INFO] running `Command { std: "docker" "start" "-a" "c53ed33bbc1ab31e2c5b268d96bc5a19f25ee17fff929c847db7235e82aaf1f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking rustc-cfg v0.4.0
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking cargo_metadata v0.11.1
[INFO] [stderr]     Checking cargo-binutils v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting cargo-binutils v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `cargo-binutils`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name cargo_strip src/bin/cargo-strip.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-23dff0c64805ed62.rmeta --extern cargo_binutils=/opt/rustwide/target/debug/deps/libcargo_binutils-236940a155d98814.rmeta --extern cargo_metadata=/opt/rustwide/target/debug/deps/libcargo_metadata-cd7e11cf8a812b72.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-f4cf5e40150490cf.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-c251ca4f1be2ef5d.rmeta --extern rustc_cfg=/opt/rustwide/target/debug/deps/librustc_cfg-b7716c138ea29fb2.rmeta --extern rustc_demangle=/opt/rustwide/target/debug/deps/librustc_demangle-61e85de7386cc686.rmeta --extern rustc_version=/opt/rustwide/target/debug/deps/librustc_version-7116f44a7e360cdd.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-94872715f8172b7c.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-e351c96d86175b1d.rmeta --cap-lints=warn --crate-version 0.3.1` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c53ed33bbc1ab31e2c5b268d96bc5a19f25ee17fff929c847db7235e82aaf1f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c53ed33bbc1ab31e2c5b268d96bc5a19f25ee17fff929c847db7235e82aaf1f1", kill_on_drop: false }`
[INFO] [stdout] c53ed33bbc1ab31e2c5b268d96bc5a19f25ee17fff929c847db7235e82aaf1f1